Writer/artist John Byrne has a new comic book coming in March from IDW Publishing: Star Trek - Leonard McCoy, Frontier Doctor. The story follows our "simple country" physician in the time just before the events of Star Trek: The Motion Picture (which accounts for the doc's scraggly Zach Galifianakis look).
Byrne's website, Byrne Robotics, has a couple pages of finished artwork, and trekmovie.com has the cover for issue no. 1.
It's too bad DeForest Kelley isn't around to see a mini-series devoted to his beloved character.