I'm pretty sure they'll release it on PC as well but only after the release of the console versions. They have no reason not to since they've been developing the game on PC and the PC version is probably pretty easy to make then. Making it won't probably cost too much and even with high piracy rates they're bound to get some money.
However, they might still not release it on PC. The same case as with exclusives; it's not always about money. Maybe they want to keep Final Fantasy a console title... Or maybe they don't like PC... Or maybe they think PC players would like some changes (interface and such - remember Oblivion?) (in which they would be right). Or maybe there's some other reason.







