I've now watched v2.1.
Wonderful.
I know it's only a recreation, and not strictly the authentic original, but when it looks this good who cares?
The only issue I noticed were some minor "chequerboarding" compression artefacts in the death star control room (in the darker reds, above this guy's hand).
It shows up more on my TV than on the PC's display, but hopefully the higher bitrate on the BD will take care of it.