The Digital Bits and TrekMovie.com have reported on the forthcoming release of Star Trek titles on Bluray. There will apparently be two sets coming, a collection of the six original TOS movies, all in theatrical versions, and the first season of TOS, which will apparently include both the remastered and original versions of the episodes.
Meanwhile the Norwegian site Release.no has reported on European bluray releases, indicating there will be a box set of the first three TOS movies "Star Trek: The Motion Picture Trilogy" (though it would seem rather more logical to me for that set to be films two, three and four, which actually form a trilogy). They also say there will be individual releases of The Wrath of Khan, The Search for Spock, The Voyage Home and The Undiscovered Country. They also reported on the TOS season release, and have packaging shots for both releases: