Not to dampen everyone's excitement but it might not be a full remake, it could be a game just made for HD, where all the small details are just defined more and made much more clearer. Much like when Square release a bundle of past Lara Croft games in HD.They might add small things like letting the Americans finally have those extras that Europe got, like Penance and the dark Aeons, maybe even trophies aswell.

I'm not going to get too excited until I see how far they are going with this remake, FFX is one of my favourite games, so I'm resisting the urge to let my mind get carried away with this, but this remake might actually reopen the door with Spira, they might decide to then remake ffx-2 with last mission available to everyone. It could lead to a prequel? One can dream.

But most likely it is as I said it's probably not going to be a full remake.