I saw it in two different theaters this past weekend. The first time in a THX approved theater with DTS. The other was in a Dolby EX theater. Both times the sound was incredible, especially with flybys on the ships. Smooth panning between the channels and deep rich bass both times.
As for...
The CG wouldnt pop out from a direct digital transfer this time as the original live action elements are digital now too, as it was shot on digital video(a very new version). Hopefully it will be direct digital.