Certainly something to consider - it sucks that we can’t get seamless branching to work properly - I’d love to have one disc where you’d go to the menu and select between the US 1977 Version, US 1981 version or one of the foreign language versions, each with their own crawl, burned in subs and (for some) credits. I’m not sure if we have scans of both but it would be awesome to have both versions of the English credits as well, where one would run with the '77 version and the other with the '81 version.
And then the MKV release would be the US '77 version.
You forgot to mention the '97, '04 and '11 branching options…