BmB said:
Well there's always room for lossless video on the HVD discs. :D
Regardless one would assume that Star Wars, being what it is, is always destined to return to the big screen. And then you want more than 1080p.
Also I don't think 4k will be used for home video for at least another 30 years if at all.
Prequels = shot in 1080p. Can never get higher quality. Lucas probably feels that 1080p is good enough for anything now.