No official word as of yet but this HD test shows off the high quality that can be experienced for all 85 episodes.
The debate, as usual is whether to release the format in the original 1.33.1 aspect or the 1.78.1 "widescreen" aspect. While the widescreen will fit in today's TV format and will give you a little bit more off the side of the screen, it will cut off a bit of the top and bottom as seen in this video above. In theory the widescreen will work but often these shows used the 1.33:1 aspect to frame shots so you might see lights, cables and the edge of the set. One suspects that these errors would be adjusted so they don't show in the new format but you will not be seeing the show as it was originally intended. Star Trek did the right thing and had the 1.33:1 format preserved with its release.