What If Nightwing lead the Arrowverse?

After the success of the Dark Knight trilogy, the CW conceived Arrow to piggyback off that success. However, Green Arrow and Batman are two different characters, which meant sacrificing a lot of what makes Green Arrow great. Because of this along with what the universe ended up turning into, I believe that Nightwing should've been the one to start the CWverse instead of Green Arrow. I may elaborate further in another post, but here is what I think the CWverse should've looked like.

Nightwing
Airing: 2012-20

Seasons: 8

Plot: Fighting crime alongside the dark knight as Robin for ten years, Dick Grayson was growing tired of living in his adopted father's shadow and after a fight with Batman, Dick realizes he wants to be more than just Batman's sidekick. Dick and his girlfriend Barbara Gordon, under the new moniker of Batgirl move to Bludhaven to start fresh. Crimefighting isn't a walk in the park as Dick soon realizes and he is forced to question whether or not he is ready to fight on his own.

Protagonists:


 * Grant Gustin as Dick Grayson/Nightwing
 * Candice Patton as Barbara Gordon/Oracle
 * Stephen Amell as Hank Hall/Hawk
 * Katie Cassidy as Dawn Granger/Dove
 * Jesse L. Martin as Jim Gordon (S1-S6)
 * Caity Lotz as Helena Bertinelli/Huntress (S1-S4)
 * Chella Man as Joe Wilson (S1)
 * Cress Williams as Jefferson Pierce/Black Lightning (S5-S7)
 * Myles Truitt as Virgil Hawkins/Static (S5-S7)
 * Ashley Liao as Cassandra Cain/Tigress (S7-)
 * LaMonica Garrett as HighFather (S8)

Antagonists:


 * Manu Bennett as Slade Wilson/Deathstroke (S1)
 * John Barrowman as Mark Desmond/Blockbuster (S2)
 * Tom Cavanagh as Lincoln March/The Owl (S3)
 * Neal McDonogh as Damien Darhk (S4)
 * Chella Man as Joe Wilson/Arkham Knight (S5)
 * Josh Segarra as Sheldon Lyle/Heartless (S6)
 * Alexander Siddig as Ra's al Ghul (S7)

The Flash
Airing: 2014-23

Seasons: 9

Plot: Wally West aka Kid-Flash was the sidekick to his uncle Barry Allen aka the Flash for five years. However, after a fight with the Reverse-Flash, the Flash has vanished. In the six months since his demise, Wally has denied the mantle, stating that he doesn't want to tarnish the legacy of the Flash, even going as far as to quit being Kid-Flash to avoid questions of where the Flash is. However, due to the absence of a hero to instill hope into the hearts of Keystone City, crime has spiked higher than ever before, forcing Wally to act... fast.

Protagonists:


 * Jordan Fisher as Wally West/The Flash
 * Malese Jow as Linda Park
 * Meagan Tandy as Iris West (S1-S8)
 * Phil Morris as Silas Stone (S1-S7)
 * Carlos Valdes as Cisco Ramon/Vibe (S1-S7)
 * Danielle Panabaker as Caitlin Snow (S1-S3)
 * Joivan Wade as Vic Stone/Cyborg (S2-)
 * Tyrel Jackson Williams as Danny West/Kid-Flash (S2-S4)
 * Hartley Sawyer as Ralph Dibny/Elongated Man (S5-S7)
 * Amandla Stenberg as Jai West/Kid Quick (S5)
 * Violett Beane as Jesse Garrick/The Flash (S7-)
 * Andy Mientus as Hartley Rathaway/Pied Piper (S7-)

Antagonists:


 * Charles Michael Davis as Daniel West/Reverse-Flash (S1 & S3A)
 * Teddy Sears as Hunter Zolomon/Zoom (S2)
 * Robbie Amell as Ronnie Raymond/Deathstorm (S3A & S8A)
 * Wentworth Miller as Leonard Snart/Citizen Cold (S3)
 * David Sobolov as Grodd (S3B & S8)
 * Jordan Fisher as Wally West/Savitar (S4)
 * Danielle Panabaker as Caitlin Snow/Killer Frost (S4 & S8A)
 * Chris Klein as David Hersch/Cicada (S5A)
 * Neil Sandlands as Clifford DeVoe/The Thinker (S5B)
 * Sendhil Ramamurthy as Ramsey Rosso/Bloodwork (S6A)
 * Efrat Dor as Eva McCulloch/Mirror Master (S6B)
 * Karan Oberoi as August Heart/Godspeed (S7)
 * Rick Cosnett as Barry Allen/Negative-Flash (S8B)
 * The Anti Monitor (S9)

Flash vs. Nightwing
Airing: December 2-3, 2014

Shows: Nightwing & The Flash

Plot: Roy Bivolo, a metahuman with the power to send people into an uncontrollable rage, uses his powers to rob the Central City bank. The police track Bivolo to a warehouse, where he uses his powers on a cop to facilitate his escape. Wally West arrives to save Martin Stein, but is almost injured himself before Dick Grayson, as the "Nightwing" vigilante, arrives to stop the cop.

Antagonists: Paul Anthony as Roy Bivolo/Rainbow Raider

Supergirl
Airing: 2015-21

Seasons: 6

Plot: At 15 years old, Kara Zor-El escapes doom on planet Krypton to find protection on Earth. When Kara arrives, she discovers that 40 years have gone by. She now has to live in the new, cruel world that she is forced to face: high school. Having to now adjust to her new life, Kara must juggle her new responsibilities with her very human relationships as well as the superpowers that came with her from Krypton.

Protagonists:


 * Sierra McCormick as Kara Zor-El/Supergirl
 * Nicole Maines as Alex Danvers/Sentinel
 * David Harewood as J'onn J'onzz/Martian Manhunter
 * Mehcad Brooks as John Henry Irons/Steel (S1-S5)
 * Mateo Arias as Kenny Schott (S1-S3)
 * Billy Unger as Logan Luthor (S2-)
 * Alex Garfin as Conner Kent/Superboy (S2-S5)
 * Cole Sprouse as Mon-El (S3)
 * Jesse Rath as Querl Dox/Brainiac V (S3-)
 * Serayah McNeill as Natasha Irons/Steel (S4-)
 * Tom Welling as Clark Kent/Superman

Antagonists:


 * Peter Fascinelli as Morgan Edge (S1)
 * Tyler Hoechlin as Paul Westfield (S2)
 * Tom Welling as Hank Henshaw/Cyborg Superman (S2)
 * Sofia Carson as Sam Arias/Reign (S3)
 * Sierra McCormick as Linda Lee/Red Daughter (S4)
 * Michael Rosenbaum as Lex Luthor (S5-)
 * Thomas Lennon as Mister Mxyzptlk (S6)

The Brave & The Bold
Airing: December 1-2, 2015

Shows: Nightwing & The Flash

Plot:

Antagonists: Mongul

Teen Titans
Airing: 2016-22

Seasons: 7

Plot: On a mission to investigate a child trafficking ring, Tim Drake finds Rachel Roth, a special girl possessed by a strange darkness, and in an effort to save Rachel, gets involved in a conspiracy that could bring Hell on Earth. To combat this evil, Tim knows he won't be allowed to pursue this mission if an adult hero is accompanying him. As a result, Tim gathers fellow teen heroes and sidekicks across the country as together they become a surrogate family and team of heroes fighting evil.

Protagonists:


 * Michael Cimino as Tim Drake/Robin
 * Dylan Sprayberry as Conner Kent/Superboy (S1-S6)
 * Cozi Zuehlsdorff as Rachel Roth/Raven (S1-S5)
 * Caleel Harris as Vic Stone/Cyborg (S1-S3)
 * Armani Jackson as Gar Logan/Beast Boy (S1-S3)
 * Nathan Anderson as Jackson Hyde/Aqualad (S1)
 * Taylor Russell as Koriand'r/Starfire (S2-)
 * Stephanie Brown/Spoiler (S2-S5)
 * Curran Walters as Bart Allen/Impulse (S3-)
 * Matt Ryan as John Constantine (S3)
 * Cassie Sandsmark/Wonder Girl (S4-)
 * Xolo Mariduena as Jaime Reyes/Blue Beetle (S5-)
 * Brec Bassinger as Courtney Whitmore/Stargirl (S6-)
 * Damian Wayne/Robin (S6-)
 * Jonathan Kent/Superboy (S6-)

Antagonists:


 * Joseph Morgan as Sebastian Sanger/Brother Blood (S1)
 * Anna Diop as Komand'r/Blackfire (S2)
 * Mongul (S2)
 * Jonathan Crane/The Scarecrow (S3)
 * Jason Todd/Red Hood (S3)
 * The Hive Five (S4)
 * Jon Cryer as Lex Luthor (S4)
 * Emma Thompson as May Bennett/Mother Mayhem (S5)
 * Tony Todd as Trigon (S5)
 * The Reach (S6)
 * Manu Bennett as Slade Wilson/Deathstroke (S7)

Invasion!
Airing: October 11-13, 2016

Shows: Nightwing, The Flash, & Supergirl

Plot: Wally West investigates a meteor crash outside Keystone City, which turns out to be a spaceship from which aliens emerge. Jim Gordon tells the team that the aliens are known as the Dominators, and that they had landed on Earth during the 1950s, but mysteriously departed. Wally assembles the Titans, Nightwing, Supergirl, and more.

Antagonists: The Dominators

Crisis on Earth-X
Airing: October 9-12, 2017

Shows: Nightwing, The Flash, Supergirl, & Teen Titans

Plot: A Nazi regime rules the parallel world of Earth-88, where the mighty führer Oliver Queen seizes a temporal gateway from the Freedom Fighters, which enables travel to other universes. On Earth-1, Oliver Queen and Dinah Lance's friends, come to Star City for Oliver and Dinah's wedding. However, the wedding ceremony is interrupted by invaders from Earth-88 led by Führer Queen, his wife Zatanna, their bravest soldier Hal Jordan, and their most decorated soldier known as Bane.

Antagonists: The New Reichsmen

Static
Airing: 2018-21

Seasons: 4

Plot: Virgil Hawkins is a high school student in Dakota City who, as a result of accidental exposure to an experimental mutagen in an event known as the Big Bang, gains the ability to control and manipulate electromagnetism. He uses these powers to become the superhero "Static". Countless others who were also exposed also gained a wide variety of mutations and abilities, many of whom use their abilities in selfish, harmful, and even criminal ways, and Static enters a battle that he finds out is much bigger than he had imagined.

Protagonists:


 * Myles Truitt as Virgil Hawkins/Static
 * Sean Ryan Fox as Richie Foley/Gear
 * Phil LaMarr as Robert Hawkins
 * Corrina Brown as Sharon Hawkins
 * Armani Jackson as Adam Evans/Rubber Band Man (S2-)
 * Cress Williams as Jefferson Pierce/Black Lightning

Antagonists:


 * Jharrel Jerome as Ivan Evans/Ebon (S1)
 * Caden Conrique as Francis Stone/Hotstreak (S1)
 * William Sadler as Simon Stagg (S2)
 * Kel Mitchell as Rex Mason/Metamorpho (S2)

Young Justice
Airing: October 9-10, 2018

Shows: Teen Titans & Static

Plot: When an alien force attempts a hostile takeover of Earth, it is revealed that the Justice League had, in a show of force, attacked a peaceful planet while under the control of the Dominators two years ago. After the invasion is defeated, those heroes who led the attack leave Earth in an attempt to clear their names. As more and more aliens come to Earth, the people's faith in our heroes begins to dwindle and shift to the Reach, an alien race that offered a peaceful, diplomatic relationship.

Antagonists: The Reach & The Children of Darkseid

Hellblazer
Airing: 2019-22

Seasons: 3

Plot: Demon hunter and master of the occult John Constantine figured there was no longer any point in fighting the good fight since his soul belongs to the netherworld, but when demons target the daughter of one of his closest friends, Liv, he reluctantly rejoins the battle. It turns out that Liv has second sight, an ability to see other worlds and predict supernatural occurrences, a power that makes her a threat to the new evil rising from the shadows. She and Constantine take their combined skills on the road, travelling the country to find demons and send them back to hell.

Protagonists:


 * Matt Ryan as John Constantine
 * Tala Ashe as Zatanna Zatara
 * Charles Halford as Francis "Chas" Chandler
 * Harold Perrineau as Manny (S1)
 * Lucy Griffiths as Liv Aberdine (S1)
 * Cozi Zuehlsdorff as Rachel Roth/Raven (S3)

Antagonists:


 * Michael James Shaw as Papa Midnite (S1)
 * Nergal (S2)
 * Klarion the Witch Boy (S3)
 * Trigon (S3)

Apokolips War
Airing: December 8, 2019-January 14, 2020

Shows: Nightwing, The Flash, Supergirl, Teen Titans, & Hellblazer

Plot: Following two failed attempts at conquering Earth, Darkseid and his armies continue conquering other worlds. The Justice League devise a plan to defeat Darkseid by infiltrating Apokolips while leaving the Teen Titans on Earth to defend it. Unbeknownst to them, Darkseid spies on the League through Cyborg. The League are overwhelmed and defeated by Paradooms — genetic hybrid creatures made from Parademons and Doomsday—and a majority of the heroes from both the League and the Titans are killed, while those who survive are placed into Darkseid's slavery. Two years later, the remaining heroes gather in a last ditch effort to find freedom.

Antagonists: LaMonica Garrett as Darkseid