If this is gonna be based on Civil War then is there a chance that...
The Punisher will be in this? He ends up rescuing Spider-Man in the comics.
Slimer! That was my clean uniform!" Winston Real Ghostbusters Episode Lost and foundry
That's true he did save spider-man, it's either going to be the punisher,iceman or hawkeye that get the last spot. I've been told there is another spot for a 25th super hero when you beat the game.
Most people think it is nova who will be the secret super hero, only time will tell.