I still have my tape of the 25th Anniversary special, as aired on the appropriate channel in the Bay Area in fall 1991, and I think you're right - it was in concert with the 5th Season premiere.
By that time, I'm amazed that they wanted to bring Roddenberry out to a convention, when he was so far advanced in his health issues. (He had suffered multiple strokes, and was no longer able to function without constant care. As Susan Sackett relates, by 1990, he was already at the point where he was no longer paying much attention to TNG. His last real work with Star Trek was his open disapproval of Trek VI - and as with his comments on the other movies after TMP, he was pretty much ignored. Really a sad ending.)
As for the Robert Wise cut of TMP, knowing Paramount, I'd say that all the negatives for his work on the movie have been carefully preserved by Paramount. There's too much at stake with the franchise for the studio to abandon anything. And I don't think it would be as major of a situation to remaster the Wise cut. Nelson, I stand corrected about whether there's a 35mm answer print - but I still don't think it would be as significant of a project to do this work. It would certainly cost money - but I don't think anywhere near as much as it cost to do the Wise cut in the first place. We're not talking about redoing the work - just adjusting the resolution of the existing CGI files and doing a new transfer. This is more than people were willing to do in 2009, when there were some serious cost-cutting issues going on. But in 2012, as part of the promotion for the next film, I could see them approving this for a new Blu-ray, since they'd have a guaranteed sales level in any case.
Now, dealing with any of the other series on Blu-ray would be a very different issue. I don't see how that would make any financial sense - other than with Enterprise. There's just too many hours of episodes that would all need to be converted and upgraded. The HD work on TOS was already a fairly expensive effort (and even that one missed many opportunities due to the limits they had in time and budget). To upgrade just TNG to high definition, including re-doing all of the VFX for over 170 episodes would take so much time and money that I can't imagine it being cost-effective. Trek fans are happy to get new passes at the original series episodes, but even they have balked at repeatedly picking the same shows up over and over again. I just had the discussion two days ago with a friend about whether it was worth the money to pick up the Blu-ray of Season Three, when he already had it in the SD set. For me, I'm happy to have the new transfers, but I don't think there's as large a group willing to repurchase the whole series of TNG just to get new VFX and new transfers.
![Star Trek: Original Motion Picture Collection (The Motion Picture / The Wrath of Kahn / The Search for Spock / The Voyage Home / The Final Frontier / The ... Captains Summit Bonus Disc) [Blu-ray]](http://cdn.hometheaterforum.com/f/fe/50x50px-ZC-fe09f424_B001TH16DI-51qWb8XF9HL.jpg)
![Star Trek (Three-Disc +Digital Copy) [Blu-ray]](http://cdn.hometheaterforum.com/4/40/50x50px-ZC-B001AVCFK6-51RfGsmoLVL.jpg)
![Star Trek: The Next Generation Motion Picture Collection [Blu-ray]](http://cdn.hometheaterforum.com/c/ca/50x50px-ZC-caad881a_B002I9Z8GW-51Y1Zjf5K7L.jpg)












