Sorry, in my eyes he's a one-trick pony... That trick is Aerosmith, and I can't see him igniting anything completely different elsewhere. I can see him pulling a Santana though and just doing a bunch of guest appearances and an album with a bunch of other folks on it... you know... sell-out type stuff to keep the "maintain my lifestyle" money coming in....
He'll probably guest on quite a few more country singles now and throw out a couple more syrupy ballads for movies, but if anyone's really expecting anything worthwhile, unique, or groundbreaking they're in for a let-down!