Not in the near future, due to licensing rights. The Marvel Universe license is only given to one company at any given time. Activision created MUA with it while they had it, but now Capcom has it (which is how they were able to make the very awesome Marvel vs Capcom 3 games in 2011). So until that license changes hands again, there won't be another chapter of MUA. (This license shift is also why there was so much confusion about and a short window for the DLC for MUA2.)