Any way you slice it, it's still a Copyright (and likely Trademark) violation.![]()
It's still a fan film. It's fans making something set in the Trek universe, and they're doing it because they like Trek. That's a fan film, even if the fans are professionals.
Maurice has it precisely right.
Arguing about the definition of 'fan film' doesn't change anything. It doesn't mean you can charge for your film, put it in theaters with admission charges, or on TV or the net with commercials.

And I would still cover it at Star Trek Reviewed.
And yes, like Tosk, I would call it a fan film. But frankly, that's not really important. Vic's Vintage Voyages is just as much a fan film series as Star Trek Continues. Hell, they even have the same actor playing Captain Kirk. They also have exactly the same legal relationship to the franchise holder.