There would probably be some serious license issues with doing that.

Have you ever considered approaching them?

Other than licensing, there's the problem that Star Trek sets don't allow for a lot of fudging of space. You'd either end up with something accurate and not usable as far as miniatures go, or something that just doesn't look and feel like Star Trek except through the accents. Or, if everything was upscaled to fit the minis, then everyone would look like they've been shrunk compared to the scenery.

Take a turbolift, for example. It could fit one miniature. Jeffries Tubes could not exist. A shuttlecraft would only fit 1 to 2 miniatures, and at that they'd have to be single file.

Plus, WWG is great at making their own stuff instead of copying someone else. I don't see a need for them to do Star Trek or Battlestar Galactica or Firefly or whatever.

otoh, outdoorsy and indoorsy scifi props would be nice. Something to spice Titan up with.

I'm still itching for some outdoor sci-fi stuff... Endor, Tatooine, stuff like that. Frontier sci-fi.

Sorry but i would not go for ST at all, as well not my intrest.

Which is why Sci-fi is hard to do, what works very well for a setting will not work for another, and you limit sales. Why Titan is very generic as it can work for many settings and not specific for any one.