.Mac. said:

I have no problem with having different directors for SW, but I guess I am still somewhat surprised that Lucasfilm already decided to hire another director (without first seeing if VII bombs or is successful - hopefully the latter). I'm guessing JJ had told Lucasfilm that he certainly does not want to return for another SW. It really is a daunting task to take on any SW duties these days, that's for sure. Rian is a good choice to take over though, I approve.

That would be my assumption for JJ as well. They're probably not moving on from him after a few weeks of filming otherwise.