One of the advantages with 3D Star Trek is seeing interstellar vistas, spaceship battles, alien planets, and awesome aliens all in full-fledged 3D. Imo 3D doesn't really serve that much point for regular tv dramas or comedies. 3D has much more potential for films and series with exotic environments and creatures, like Scifi and fantasy. So in this regard I think 3D trek would definitely be interesting to watch, if nothing else then perhaps as a mini feature. Maybe something that ties in with the next trek movie.
Or, if live action 3D is too costly, then why not go all the way and make a full-fledged CGI Trek series in 3D?