Norman Spinrad is the author of the classic Star Trek episode, "The Doomsday Machine", and he is also an accomplished SF writer outside of the beloved old series. He wrote a script in the 1960's for another ST episode, but it was never made into an episode. That script has now resurfaced, and the fans at Phase II will (hopefully) be turning it into an episode.
Star Trek, Phase II, by the way, can refer to the attempt to revive the series in the 1970's, but, these days, it also refers to the fan project started by James Cawley.
That's an impressive project, but he should now try and start his own series - either that or leverage his fame with the Star Trek community to get Paramount to let him produce his own series.