1st, Spirited Away was probably the best dubbing I have ever seen done with Anime. Sadly, there was a bit of a plot point that was mistranslated, but it's forgiviable.
2nd, Sony will probably be dubbing it, not Disney.
3rd, As I speak Japanese I'll probably be seeing this the day it's released on DVD.
4th, it's not like it's going to be fansubbed 30 seconds after it's released. It will be most likely be availible using some protocol that rhymes with "Borrent", not that I advocate that kind of thing.
Which reminds me, when the movie comes out, treat any movie requests, reguardless of fansubbing, with the same response as a request for the FF7 game. I'm pretty sure with the way Square has been shutting down fansubed trailors, they are going to be adopting a zero-tolerance to anything even remotely looking like an Advent Children link. Keep in mind, this movie can seriously break SquareEnix. They don't have the ability fallback like they did with FF:TSW. If this movie doen't make it, they are dead meat.
Just a heads up.