1. A good battle system. Hell I'd be happy with Crisis Core battle system. I hope they don't try and re-invent the wheel and change the game too much. Final Fantasy has evolved with the latest iterations, but FF7 would not suit the 'newer' battle systems so I think they have to try and maintain the original turn-based system to some degree without completley ruining it.

2. Don't skip or omitt cetain parts of the game. This one I'm hoping they don't do. If you are making a remake don't try and evolve it, keep everything that MADE the original in the game no matter how insignificant.

3. Keep and honour the original and don't pretend it is a new game. Re-create every scene, every dialogue, every character in their original style. Please..!