It's too new, FF7 is much older, the graphic engines mean there is a serious difference between the new FF7 games and the old- and at this point they're all new games not remakes. So if they don't remake something old, why would they remake something new???

FFX-2 came out a couple years ago, the graphics are not outdated, and the game was not very successful, so unless they remake everything it's probably never going to be remade. FF7 has a huge fanbase so square is making money off of that, FFX-2 has it's devotee's but the fanbase comparitively is tiny.

And if what you're looking for is another FFX-(insert # here) it's very unlikely for the reason that X-2 was not popular. X was a large success which is why X-2 was made, but X-2 was not. (I'm repeating myself aren't I).