I wouldn't be so sure. Lots of obscure anime makes it into specialist stores outside Japan, even down here in New Zealand. An FFVII movie is a much more "mainstream" idea, so its release might be inevitable. The FFX DVD, on the other hand, sounds like it was just a gimmicky recording of the in-game FMVs with a little bit of extra stuff tacked on, not something that'd be a huge success anyway.