M v C 3 has just been announced!
While only six of the game's characters are shown in this short, almost entirely gameplay-free trailer, many others are hinted at.
What we know for sure is that Wolverine, the Hulk, Iron Man, Street Fighter's Ryu, Darkstalker's Morrigan and Resident Evil's Chris Redfield will be in the game.
As taken from: http://kotaku.com/5518018/marvel-vs-capcom-3s-bombastic-trailer-reveals-16-characters