With the new formats out now, I would love to see it as a DVD-Audio or SACD release. I have both formats at home and would love to listen to the score in 5.1! I just bought a disc with Jerry Goldsmith's music in the SACD format. It sounds fantastic!! I can't imagine what John Williams score would be like.
With DVD-Audio, they are backward compatible with existing DVD players. They will include a 2 CH version, as well as a 5.1 version. In most cases,they also include it in DTS.
SACD is less intising(but top notch quality). You have to be very careful! Many discs are "Hybrid", and will contain a 2 CH layer to be played on any conventional cd player. If not a "Hybrid", it can only be played on a SACD player.
So, for all the Star Wars fans here, the hope of a soundtrack re-issue in one of these formats should make sense.