It was implied that “certain” popular Marvel characters couldn’t be used in the upcoming Marvel vs Capcom 3 game due to licensing issues in this interview.
Although no character names were mentioned, the majority of the consensus is Spider-man since his character has an exclusive license with Activision through 2017.
This is not the first time Activision has shafted the Marvel video gaming fans; everyone remember this news back in January courtesy of Marvel Ultimate Alliance?
No Spider-man license means no Venom, Carnage, Green Goblin, Sandman, etc.
It’s still too early to tell, and a lot can change in the next coming months (especially with fan support/pressure), but please let Spidey be in the game!