My preferred choice is Spielberg.

However, if I had to put down money one who I actually thought it would be, I'd have to go with Gore Verbinski. I base this on he fact that Disney already has a good track record with him having done 3 Pirates movies and the upcoming Lone Ranger, and unlike a lot of the other names being thrown around, according to IMDB, he seems as though he might actually have an open schedule that would allow for it what with Lone Ranger in post production and scheduled for release next years and no future projects announced.