Ultra Street Fighter V (Final Season)

Before the release of Street Fighter 6, Capcom decided to do a true final season. In this season, all characters would come out at the same time with every content included. It also would include the final version of Street Fighter V, called "Ultra Street Fighter V", which includes sixteen characters with eight of them being guest characters (yet Biff and Skullomania would end becoming canon in the SF universe, so technically reducing the count to two) and for the first time in the series, some of those guests are from other companies.

Content

 * Sixteen new characters.
 * Seven were in a Street Fighter game before, the rest are newcomers.
 * Each characters have 6 costumes (including base).
 * New costumes for previous characters (between one and six costumes).
 * New moves for some previous characters.
 * Certain V-Skills are changed into regular special moves, those are replaced with new V-Skills.
 * Second Critical Art for every character in the roster, like in Ultra Street Fighter IV, you can select which CA you want to use in the character select screen.
 * Eight new stages.
 * Every guest character includes one stage.
 * Balance changes.

Costumes
Ryu Ken Chun-Li Guile Zangief Blanka Dhalsim Edmond Honda Balrog (Boxer) Vega (Claw) Sagat M. Bison (Dictator) Cammy White Fei Long Akuma Geki Charlie Nash Birdie Rose Dan Hibiki Sakura Kasugano Cody Travers Kalin R. Mika Maki Genryusai Alex Ibuki Yun Urien Makoto Remy Gill Seth Juri Rashid Laura F.A.N.G. Necalli Abigail Menat Kolin Ed Falke G Poison Lucia Zeku Kage Luke Akira Mike Haggar Skullomania Kyo Kusanagi Terry Bogard Ryo Sakazaki Jin Kazama Sub-Zero
 * Batsu Ichimonji
 * Phoenix Wright
 * Cyber-Ryu (Based on the Cyber-Lin Kuei)
 * Santa
 * Gouken-inspired costume
 * Robert Garcia (KOF XV costume)
 * Scorpion
 * Sanada Yukimura
 * Apollo Justice
 * Mai Shiranui
 * King (AoF custome)
 * Ling Xiaoyu
 * Sonya Blade (Klassic costume)
 * John Crawley
 * Clark Still (Ikari Warriors costume)
 * Jax Briggs (Klassic costume)
 * Raiden (Fatal Fury)
 * Armor King
 * King of Dinosaurs
 * Toyotomi Hideyoshi
 * Gan Isurugi
 * Kuma
 * Kotal Kahn
 * Victor (Darkstalkers)
 * Duo Lon
 * TBD
 * Goro Daimon
 * Bo Rai Cho
 * Franco Bash
 * Heavy D!
 * Geras
 * Dudley-inspired costume
 * Lawrence Blood
 * Miguel Caballero Rojo
 * Rain
 * Godot
 * Kurow
 * Joe Higashi
 * Fahkumram
 * Kano (Klassic Costume)
 * Hyo Imawano
 * Oda Nobunaga
 * Omega Rugal
 * Shang Tsung (MK11 Old Costume)
 * Kazuya Mishima (Tekken 7 Suit)
 * Leona Heidern (KOF XV Costume)
 * Blue Mary
 * Nina Williams (Spysuit)
 * Cassie Cage (MK11 Costume)
 * Zaki
 * Story Costume (Elegant Suit)
 * Battle Costume (Based on Bruce Lee's Game of Death costume)
 * Liu Kang
 * Marshall Law (Tekken 7 Costume)
 * Oni
 * Mr. Karate
 * Nightmare Geese (KOF XIV Look)
 * Heihachi Mishima
 * Quan Chi
 * Story Costume (Maskless suit)
 * Battle Costume (Original Geki)
 * Lee Pai Long
 * Andy Bogard (NESTS Costume)
 * Date Masamune
 * Simon Blackquill
 * Kyosuke Kagami
 * Krohnen McDougall
 * Lars Alexandersson
 * Jack Turner
 * Chang Koehan
 * Bob Richards
 * Nohime
 * Kyoko Minazuki
 * Franziska Von Karma
 * Dolores
 * Katarina
 * Elvis Costume (From Pocket Fighters)
 * Masahari Yasaki
 * Hinata Wakaba
 * Athena Cykes
 * Yuri Sakazaki
 * Athena Asamiya (KOF XIV Costume)
 * Asuka Kazama (Classic Costume)
 * Miles Edgeworth
 * Roy Bromwell
 * Yashiro Nanakase
 * Paul Phoenix
 * Johnny Cage
 * Lili
 * Ema Skye
 * Yurika Kirishima
 * Tiffany Lords
 * Angel
 * Tizoc (adapted for female body)
 * Julia
 * Sheeva (only suit)
 * Story Custome (Based on Guy's outfit)
 * Battle Costume (Training Outfit)
 * Summer Outfit
 * Rick Strowd
 * Antonov
 * King
 * Casual
 * Tanuki Costume
 * Bandeiras (adapted for female body, like Zarina's)
 * Kitana
 * Kunimitsu
 * Story Costume (Casual Outfit)
 * Battle Suit (Traditional Outfit)
 * Shoma Sawamura
 * Hwoarang
 * Kung Lao
 * Daigo Kazama
 * Geese Howard
 * Goenitz
 * Dragunov
 * Shao Kahn
 * Story Costume (Bikini)
 * Battle Costume (Training Costume)
 * Kasumi Todoh
 * Lidia Sobieska
 * Story Costume (Original Outfit)
 * Battle Costume (Thug)
 * Freeman
 * Iori Yagami
 * Devil Kazuya
 * Onaga
 * Igniz
 * Nahyuta Sahdmadhi
 * Magaki
 * Unknown
 * Triborg
 * Kim Kapwhan (adapted for female body)
 * Anna Williams
 * Mileena
 * Sasha Buckler
 * Shaheen
 * Alfred Airhawk
 * Najd (adapted for male body)
 * Fuujin
 * B.Jenet
 * Sinclair
 * Nelson (adapted for female body)
 * Josie
 * Manfred von Karma
 * Kukri
 * Hwa Jai
 * Ogre
 * Verse
 * Blaze
 * Maxima
 * Wyler
 * Gigas
 * Ferra/Torr
 * Isla
 * Kazumi Mishima
 * Magician (Beta Design)
 * Kula Diamond
 * Maya Fey
 * Cetrion
 * K'
 * Rock Howard
 * Jacqui Briggs (adapted for male body)
 * Nina Williams (Tekken 7 looks)
 * Billy Kane (adapted for female body)
 * Lenny Creston
 * White
 * Scarlet
 * Tron Bonne
 * Cassie Cage (MKX Costume)
 * Nina
 * Eiji Kisaragi
 * Noob Saibot/Smoke
 * Raven
 * Devil Jin
 * Krizalid
 * Ralf Jones (Ikari Warriors Costume)
 * Steve Fox
 * TBD
 * TBD
 * TBD
 * TBD
 * TBD
 * TBD
 * TBD
 * TBD
 * TBD
 * TBD
 * TBD
 * TBD
 * TBD
 * Story Costume (Maximum Impact Costume)
 * Battle Costume 1 (NESTS Saga Costume)
 * Battle Costume 2 (KOF XIV Costume)
 * Nostalgia Costume (Orochi Saga Costume)
 * Story Costume (Garou MOTW Costume)
 * Battle Suit (KOF XIV Costume)
 * Sporty (Jacketless)
 * Nostalgia (FF1 Costume)
 * Story Costume (MIRA Mr. Karate II)
 * Battle Costume 1 (Topless 2002UM)
 * Battle Costume 2 (Wild Ambition + Buriki One Mr. Karate)
 * Nostalgia (AoF1 Costume)
 * Story Costume (Business Suit)
 * Battle Suit (Tracksuit)
 * Nostalgia (Tekken 3 Costume)
 * Sporty (Tekken 5 Costume)
 * Story Costume (MK Deception Costume)
 * Battle Costume (MKX Costume + freezed arms)
 * Nostalgia 1 (MK1 Costume)
 * Nostalgia 2 (MK3 Maskless Costume)

Move Changes
Ryu Ken Chun-Li Guile Zangief
 * Critical Art 2: Shin Shoryuken
 * V-Skill 2: Kamabaraigeri
 * Ryusenkyaku (RDP + Kick)
 * Critical Art 2: Ryuuenjin Reppa (Ken involves himself in fire and attacks the opponent from multiple directions in a fiery sequence ending with a dragon-shaped Shinryuken).
 * V-Skill 2: Tenshokyaku
 * Hazanshu (HCB + Kick)
 * Critical Art 2: Shichisei Ranka Kyaku (Starts like her Level 3 from the Marvel vs Capcom series but it ends with the Shichisei Senkuu Kyaku).
 * Critical Art 2: Flash Explosion
 * Banishing Flat (DP + Punch)
 * Critical Art 2: Siberian Blizzard

Trivia

 * Due to the amount of SNK characters included (the 3 protagonists of the "core" SNK fighting game series alongside the popular Rock Howard), many people started to ask if Capcom vs. SNK 3 would come next, Takayuki Nakayama expressed himself about that via twitter responding "We are in good terms with SNK, but we can't say that that game (referring to Capcom vs. SNK 3) will be our next project, but both sides are looking forward to have more collaborations."
 * The later was further proved with the release of the Team World Warriors (Ryu, Chun-Li and Guile) in The King of Fighters XV.
 * Other guest franchises (Tekken and Mortal Kombat) also received a collaboration with Capcom, adding Akuma in Mortal Kombat 12 and Sagat in Tekken 8 (alongside Akuma coming back).