With how time consuming it is supposed to be to make games for the PS3 (I've not heard any specific statistics, but from what I understand, it's a lot more work than the other consoles), I can't imagine that they'd be able to justify spending the time making a remake of Final Fantasy VII when they're already working on multiple newer titles.

If SE did decide to do a remake, I'd much rather see FFIX than FFVII, though I know that would never happen. It's a shame, really. At least I'm content with the original.