I'd be pleased if they just did for 7 what they've done for 6, which is just release a revitalization of the game. There has been a FF6 "remake" on GBA, and all they did was add a bit to the storyline and freshen up the graphics. That's all I really ask for in a FF7 remake, I guess.
Same with Chrono Trigger, I didn't really like Chrono Cross. I'd just appreciate a remade version of the game with a some interesting stuff added in where gameplay elements haven't aged well enough.