@XaviPants posted up a cool image on NeoGAF that is a take on the classic Star Wars poster with a serious Marvel vs Capcom 3 spin to it! Check out Doom in back there -- awesome! You know this game is going to be a hit when fan art like this is already making the rounds on the 'net.
Not sure who whipped this up but anyone that happens to know please post up in the comments!
UPDATE: Thanks to LostCoastLines who provided the link to RodolForvers's DeviantArt page who put this image together. He has a lot of other cool posters on there worth checking out too.