Well, apparently the entire roster for Marvel vs. Capcom 3 has been leaked via the HTML source code of the Japanese Capcom site. Well the list looks genuine, but we will wait for an official announcement regarding the same. Anyways here is the list:
Marvel
- Spider-Man
- Hulk
- Magneto
- Wolverine
- Shuma-Gorath
- Mr Fantastic
- Iron Man
- Deadpool
- War Machine
- Thor
- X-23
- Dr. Doom
- She Hulk
- Emma Frost
- Super Skrull
- Captain America
- Taskmaster
- Elektra
- Juggernaut
Capcom
- Ryu
- Chun-li
- Chuck
- Spencer
- Dante
- Trish
- Chris
- Morrigan
- Arthur
- Amaterasu
- Albert Wesker
- Viewtiful Joe
- Mike Haggar
- Zero
- Tron Bonne
- Hsien-Ko
- Akuma, Felicia