I think that Star Trek is simply awesome. It has got the message, it has got well developed characters with background stories, and it is based on a plausible scientific conceptions. And yet that is not enough for the Hollywood guys to develop a new spin off series. I think they are afraid of
|The Original crew|
Star Trek is a cult. And I do not think it is far fetched if I say it is a way of life for some. Hence to fulfill the potential of this great franchise (ST is a whole and vast fictional universe, with its six spin-offs, and thirteen movies...) it is indeed a challenging concept.
|The TOS crew after decades|
You might say: But hey, there are all the new Star Trek movies coming out every three years, so it is indeed continuing. Well, here is my simple answer: first, JJ Abrams' Star Trek (2009 and 2013 movies) is set in a mirror universe (basically he took the very same people and stories from The Original Series and made them tackle the problems differently. ) and secondly, the last three movies are only sort of a glue for the audience, blockbusters to attract the paying viewers. Besides, I would love to witness a creation of a new series which will push the franchise forward.
But now I am being a bit too harsh. Don't get me wrong, I am eternally grateful for ANY new Star Trek, even the movies. And frankly, these new movies are not THAT bad!