For quite a while CBS has left Star Trek fan film projects alone, but that has changed based on what just happened to Stat Trek Axanar.
Robert Meyer Burnett took to Twitter to let people know what CBS has filed a suit against the fan film on Christmas Day:
In the past CBS would permit Star Trek fan films (such as the New Voyages series, etc.) to exist as long as they weren’t profiting of the license. Axanar wasn’t doing that (you couldn’t “buy” a copy of it on disc, they were crowdfunding rewards), but it did have some high-profile Star Trek cast members in it with some very good production values behind it.
Maybe because CBS is working on a new Star Trek television series their stance towards fan projects is changing?