Any good space opera will ride Trek's recent success but Trek was a failure on tv and that can't be built on unless you, CBS or Netflix has 75 million dollers to spend on every episode, bacause they - the movies and tv are two different animals.
I really don't see how you can call Trek a "failure" on TV, not with 21 seasons of live action overall, 18 of them consecutive.
TOS was a failure on the networks, but became a massive success in syndication, paving the way for four successor series and a dozen movies (counting the one releasing next month).
TNG was a sufficient success to lead to two spinoffs and a prequel series, and all the Trek series are making money through DVD, streaming, and merchandising.
That doesn't mean that the previous successes would be easy to replicate in the current TV environment, but the history of the franchise should not be considered show-stopper.
Seven hundred episodes is not a sign of failure.
Was ENT a failure, yes or no? The why doesn't matter right now. Berman is gone. I do think it is a perennial but not one that I'm interested in with JJ in control. I wasn't too interested in it with Berman in control. I don't think their syndication value will be as high as TOS especially as time goes by. ENT has already been attached to Trek 09 as some kind of alternate universe history which I have no interest in.