That reminds me of when they were planning to make two "add-on"s to FFX, one for Yuna and the other for Rikku. It also reminds me of when old Squaresoft were practically under an oath never to make a Final Fantasy sequel(In the same world, that is), in order to maintain the originality and unique feel of each game.

I think Final Fantasy X should be finally put to rest. It's my least favorite game in the series(not that I dislike it) and, in my opinion, Square-Enix should focus on making what the Final Fantasy series is really about: A fresh, original, single-player game. No more online and sequel stuff.