For them to announce a demo. Watching videos about combat is not the same as actually playing it , and I'm already seeing a few possible pitfalls with this title that what little nostalgia I carry for the game is not going to give it a pass. So the ability to have some hands on time with it in the comfort of my own home would probably change me from "Wait until it's used and I've heard some reviews from people's opinions I trust" to "Maybe I'll pick it up Day 1, or more likely when it goes on some Golden Week sale".

Beyond that, I would rather like to see either the Crossdressing segment, though perhaps leave Cloud's final outfit a secret for the finished game, or I would like to see how they intend to stretch an eight hour segment of a game into an actual 40+ hour title.