We realize it's kind of rare for Capcom to release an updated version of one of its fighting games, but try to bear with us. The publisher has announced Ultimate Marvel vs. Capcom 3, which adds a number of improvements to the original. First and foremost, of course, is a load of new characters, twelve in all.
The press release mentions Capcom's Strider and Firebrand from Ghosts & Goblins (this guy). Entering the Marvel camp are Ghost Rider and Hawkeye. We're sure that the others will be slowly and methodically revealed over the next few months.
Also included will be eight new stages, a spectator mode and unnamed balance tweaks. The game is set to be released this November at a "mid range price" on Xbox 360 and PlayStation 3.