DJ and U2 are tackling n upscale and touch up to the TB versions after the Blu v2 is done of the GOUT. http://originaltrilogy.com/forum/topic.cfm/Star-Wars-Original-Trilogy-Theatrical-Editions-Info-ALL-versions-SEE-FIRST-POST-FOR-INFO-AND-AVAILABILITY/topic/10550/page/138/
The broadcast versions are our best reference point, though it may be possible to get a pretty good image out of the LD set and overcome the motion smearing that abounds in the broadcasts.
Soundwise, it would be interesting IMO to have all three mixes that would have been found theatrically: Dolby, DTS (!!!) and the Dolby Surround.