I suspect there will be a new SE released at some point, as that's what RMW's 4k "restoration" most likely was/is. Even with only four months to go, I still wouldn't be surprised to hear about the big theater chains like AMC doing all day 3D marathons on December 17th and having it turn out to be the debut of the new SE.

I think it has been established that at least some of what was shown was a 97SE restoration. No way of knowing whether they plan on releasing the 97SE (seems unlikely), or De/Respecialize it into pre/post 1997 versions. Or, if they were going for an ultimate BD set, if it was transferred in parallel with a pre-1997 version (unrealistically optimistic, but not impossible).

Should a hypothetical "ultimate" bd set ever happen, complete with the new SE, I doubt they'd bother including the '11 or '04 versions. It would be highly redundant in the face of the new version which would probably replicate most of those changes anyway.

It would really only be the cost of the discs holding them back on this one. It would be trivial to include the 2011 with branching to 2004. Depends how impressive they would want to make the hypothetical ultimate set, which we have no reason to think they will make anyway.

Rumor is that the most notorious '97 change, Greedo shooting first, has actually been switched back to its original 1977 form in the 4k SE, giving it a kind of "final cut" status.

I have no faith at all in this rumor. The single person who said this said it would be the case for the previous digital release, and then said "oops I mean it's a later release probably" (paraphrased). They had access to a release that's highly under wraps and had no idea what they were watching? Probably just a fan edit or lie.