Capcom has gone about updating their Marvel vs. Capcom 3
website with the most recent additions to the line-up. Look at their site, there are only two blank spots remaining for the game.
The roster so far (thanks to VG247):
* Captain America
* Doctor Doom
* Iron Man
* Chris Redfield
* Tron Bonne
* Viewtiful Joe
The game is slated for a Spring 2011 release.