I hope it's a coop beat em up, like Lego Avengers but with a better battle system.

talking about battle systems, square Enix doesn't really have a good example to go off on. Would have preferred if this was made by Capcom.

If they wanted to create one of those arena fighting games, then they're on the right track with collaborating with the Dissidia devs.

I hope it's not a mmo but they are aware of how popular their Facebook and mobile marvel games are.