Williams definitely needs to score the main titles, be it a straight-up recording of the Star Wars Main Titles, or a rendition of the theme(s). I really think it's necessary to have at least one of the themes from the saga (the title theme oughta do it well) to put you in the SW atmosphere, give it a connection to the saga right off the bat, especially considering this is supposed to be sans main characters. I wouldn't be surprised if he does the pilot, and if he could do the occasional episode, that would be terrific. As for the regular composer, I would love it if they had Joel McNeely doing it. No synths, though, unless they have a specific purpose for being there, but they would be with an orchestra. The Royal Scottish National, perhaps?