My wishlist:
*Slip Out (or similar) stage for (Extra) VS mode pleaase! :P
* A slot for randomly created characters (colors of the equipment, hair, skin etc. should also be randomized).
*

* A tutorial mode similar to the one in SCIII where Olcadan teaches you the game mechanics.
* Meterless GI.
* Character's stats unaffected by their equipment.
* A
functional voice editor (pitch and tone) in Character Creation.
* Less equipment clashing, or overlapping, or whatever it's called.
* SCIII style Story Mode with interactive cutscenes, hidden (NPC) characters, secret stages, stages with twists (like in SCII Weapon Master Mode)...
* A wide range of environments (preferably with some dynamic stages added into the mix).
* Bigger Command Lists.
* No need for meters/charges/Critical moves, in my book.
*Museum Mode.
* Non-linear system for unlocking equipment, characters, weapons, artwork, titles, etc. I like the way SCIII handled unlocking stuff - some of it could only be unlocked by playing CotS, or ToS, or that Tutorial Mode mentioned above; some of it was unlocked automatically, while a portion of the unlockables needed to be purchased (with in-game currency - TAKE NOTE).