Oh man, I kind of want to see this just to see people rage at the game online. Some of the cheapest shit you'll ever see this side of UMvC3. This game is actually kind of a good history lesson regarding some of the design decisions made in MvC3 and UMvC3. However, if this happened they would either need to use the AC/PS2 balancing (PSP balance changes were wack) or go with something different (and that would probably take a few revisions to get right, which I can't see them committing to).
I think the real issue is that the game was originally developed in RenderWare, which is probably way more effort to port to another platform at this point than it would warrant. The solution here would be to make a completely new game, of course!!! :V (The salt from Marvel fans alone would be worth it.) But this would involve Capcom actually making games, which doesn't happen in this day and age. I'm pretty sure Konami is on pace to publish just as many games as Capcom is in 2015, which is just fucked up.