What type of stages do you think will be added later on in SSF2?

If you can, use this format: A (insert series/franchise here) Stage: State reason here. [Place specific stage name in brackets]

My predictions are:

A One Piece Stage: Because I think Luffy will be in the roster. [Thousand Sunny, Punk Hazard, Marineford]

A Sonic Stage: If we get Knuckles or Shadow, this might happen. [Eggman's Lab/ Airship, G.U.N Facility]

A Mega Man Stage: If we get Zero Which I hope happens OMG, then this is possible. [The Final Stage in Megaman Zero 3 with Omega Zero]