Since we already have four of the six pilots in HD, I'd like to at least have "Emissary" and "Caretaker" get HD facelifts.
Agreed.
One thing that strikes me is that both Emissary and Caretaker were big budget Star Trek movies, with money and care spent on them that matches or even exceeds something like, say, The Search for Spock.
These almost "lost" Trek movies deserve to be seen in HD.
There's a apparently quite a bit of deleted footage for both of these that ended up not on the cutting room floor, but in that salt mine in PA. Dreaming even more, it would be interesting to see some of that.