They just updated the official UMVC3 site with videos for Rocket Raccoon and Frank West.

Also, I hope they add more DLC characters, preferably those returning from MVC2 and further back.

And if they make a Marvel vs Capcom 4, instead of the 3-button undefined light, medium, and strong attack scheme (which was modeled after Tatsunoko vs Capcom), they have two alternate control schemes: one of which is the 6-button light, medium, and strong punch and kick button scheme in Street Fighter, and the other a 4-button punch, kick, grab, and tactical attack button scheme (modeled after Super Gem Fighter Mini Mix).