Thanks to Oly1Kenobi of ps3blog.net, here's the first look at the third Marvel set of costumes for LittleBigPlanet which include Captain America, Wolverine, Rogue, Invisible Woman, and Venom.
Invisible Woman and Wolverine
Rogue and Invisible Woman in the Pod
Captain America and Venom
Two violent characters in the Pod
Also, according to Oly1Kenobi, Wolverine releases his claws once you give him an angry expression on his face (as usual).
A release date has not been announced, but rest assured it will most likely be this week. And with these characters announced, that only leaves Green Goblin, Storm, The Punisher, Hulk, and Magneto for the last pack.
Thanks again to Oly1Kenobi for the images and information.