You know what I reallized from the above article? I think Square may be releasing a remake of FFVII with current graphics. Just think about it, they are releasing a movie with characters that don't look exactly the way they were in the game. A lot of people have been wanting to have the master piece that FFVII is into a game that takes advantage of today's graphics, and make it more extended with things they may have missed in the previous game (since it was rushed (and NO, I hope they don't make an Aeris revival quest, yuck :x )).
This would sell probably as much as the first one, if only they would let the story line intact. However, if this was to happen, then they should release it before this movie comes out. Who knows, maybe they've really been working on it secretely.
Edit: Plus, there are new people that play FF games and haven't played FFVII.