mmhmm. the only FF i can't see with a sequel would ahve to be nine. It' had a happy fluffy ending, all nice and pieced together. FFVII finished in the middle of an apocalypse, and FFVIII resolved without ever tying up loose ends with time compression and seifers story, etc. and FF X finished with the "death" of the main character, and the other character in tears. those just lend themselves to sequels like i dunno what. My guess is FFVIII is on the list for the future.
as a side point, does anyone realize that Kingdom Hearts was probably a strategic point? seriously.....re introduce ALL the old characters in high res, get the nonstalgia going for cloud and yuffie and aerith and cid? ....THEN release movies and sequels? this is ALSO what makes me think FFVIII is coming. Seriously, think about it. I know after i played that i had a hankering for the old FF's, and it WOULD be a sly way to build up a desire for sequels.
Then Again, maybe they were testing the waters? Would gamers respond to seeing the old characters again in a new game, with a different role and story? then after it was succesful, all hell broke loose with the sequelness, because people WOULD buy it for the characters. (seriously, how many of you woulda bought it without squall and cloud in it? a DISNEY game.... seriously....)