What If Justice League: Mortal started the DCEU?

The Earth-52 in my Marvel/DC Multiverse (link here: (https://ideas.fandom.com/wiki/Marvel/DC_Multiverse_%28_xitzjohn_%29).

Movies
Release Date: May 14, 2013
 * Man of Steel

Director: Ridley Scott

Rating: PG-13

Plot: For the past few years, Metropolis has been enamored by their mysterious guardian angel: an alien known as Superman (Henry Cavill). Little do they know, Superman secretly lives among them as mild-mannered journalist Clark Kent. In his ordinary life, Clark works at the Daily Planet alongside stern editor Perry White (Lawrence Fishburne), ambitious but reckless reporter Lois Lane (Amber Rose Revah), and young photographer Jimmy Olsen (Skyler Gisondo). He also lives on a quaint farm with his adoptive parents: Martha and Jonathan Kent.

Protagonists: Clark Kent/Superman, Lois Lane, Perry White, Jimmy Olsen, Jonathan Kent, & Martha Kent

Antagonists: John Corben/Metallo & Lex Luthor

Mid-Credits: Lex (Bryan Cranston) sits in his office, carefully adjusting his toupee. His eye is drawn to something on his desk: a joker playing card with a phone number written...

Deaths: John Corben/Metallo Release Date: March 25, 2015
 * The Batman

Director: Nicolas Winding Refn

Rating: PG-13

Plot: Bruce Wayne (Milo Ventimiglia), Gotham City’s renowned billionaire playboy, trudges through mountains in the midst of a snowstorm. After briefly hallucinating a young boy, Bruce arrives on the doorsteps of Nanda Parbat, home of the League of Assassins. When Ra’s al Ghul (Navid Negahban) questions his return, Bruce confesses he has become the thing he fears the most: a murderer. With no reason to stay in Gotham, he wishes to be reinstated into the League of Assassins. Over the course of his training, we get a glimpse into Bruce’s troubled past through flashbacks. Batman takes up orphan Jason Todd (Cameron Monaghan) as his new sidekick after Dick Grayson (Brenton Thwaites) abruptly quits. However, Jason begins showing violent tendencies early in his career.

Protagonists: Bruce Wayne/Batman, Dick Grayson/Nightwing, Jason Todd/Robin, & Alfred Pennyworth

Antagonists: Ra's al Ghul, Joker, & Harleen Quinzel/Harley Quinn

Mid-Credits: An alleyway surgeon is horrified after unwrapping face bandages from an unseen patient. Suddenly, a familiar voice angrily demands a mirror. The surgeon explains that his face been permanently discolored. Nevertheless, Joker (Adam Driver) starts cackling as he limps away.

Deaths: Jason Todd/Robin Release Date: August 5, 2015
 * Wonder Woman: The Amazon Warrior

Director: Patty Jenkins

Rating: PG-13

Plot: Many years ago, Queen Hippolyta (Lynda Carter) has an affair with a mortal man. Unfortunately, she refuses to give up her throne on Amazon Island and executes her lover to avoid any temptation. Afterward, she glances over at the infant left surviving, and feels a form of sympathy. In the 1940s, Hippolyta’s adventurous daughter, Diana (Gal Gadot), lives privileged but isolated. One day, an American pilot named Steve Trevor (Chris Pine) crash lands with a grave message. In the midst of World War 2, a renowned explorer known as Vandal Savage (Rodrigo Santoro) has allied with the Nazis to uncover a mysterious weapon: a Mother Box.

Protagonists: Diana Prince/Wonder Woman, Steve Trevor, Queen Hippolyta, & V'iktorr J'onzz/Martian Manhunter

Antagonists: Vandal Savage & Isabel Muller/Dr. Poison

Mid-Credits: In the modern era, Diana Prince is approached by an older man claiming to be a detective. Suddenly, V'iktorr J'onzz (Peter Mensah) changes into his natural form, and gravely tells Diana that a powerful threat is coming...

Deaths: Isabel Muller/Dr. Poison