It was the engineering set that he just *had* to build because STC was going to have one, and then he never released another damn fan film. Maybe that terrible one with Carol Marcus that busts continuity all to hell that I couldn't even get through watching once. I remember when he threw a fit over someone fan editing Kitumba to make it more streamlined, less talky and better pacing and had it removed. He scrapped an entire filmed version of "Mindsifter" to refilm it with his "new" cast and crew that caused quite a bit of contention between various people. Couldn't decide on whether they were going full scale "Phase II" or not and kept changing his branding (and whether the Enterprise had the new engines or not yet). Scrapped all of "Origins" cuz of the Vic Mignogna beef. And if I remember right, the entire idea to expand the sets, relocate and do crowdfunding for the episodes we will never get to see, was all set into motion by a one time affiliation named Alec Peters....
JC changed his mind a lot. Several episodes were heavily puiblicised but unfilmed
Moving towards the movies with adaptations from p2; then goin back to be more like the 60s show; they were going ot build a P2 engineering but then he decided he wanted to replicate the series. Mind Sifter actually had a shoot, unfinished, then the script ws abandoned despite all the work the writer did.
The one I wanted to see was Origins, a few clips did make their way to the internety with several returning characters like Pike, Number One, Finnegan, Dr Boyce, George Kirk. Hopefully in years time it can be revived, Yorktown style. There was also a high quality German film called Das Vermachtnis [The Legacy] that was similarly shot but abandoned because it was 'G*d's will' (The director's word, not mine!!).
I know a lot of people around here are TOS purists but I always preferred Phase II for the moving forward, changing designs, introducing new uniform variants, Xon etc. Also after years of reading about them we finally saw versions of Kitumba and Blood and Fire (OK planned for TNG but same thing)
But Continues have set a goal and kept to their word the way through, even with having to cut a couple of episodes because of the guidelines. We're about to finally get the end of the five year mission on screen.