they really are going out of their way to emphasize the REAL LOCATIONS, PRACTICAL EFFECTS, PHYSICAL SETS , REAL ACTORS in Rubber suits as the creatures, every shot in that Comic-Con clip has got to be a virtual slap in the face to everything George did with the prequels.
We finally get our first glimpse at Leia, I have a slight suspicion that they won't actually reveal Luke before the movie is out, especially if there is even a hint of truth to the rumours that he doesn't appear until the final act.