Strat is right in a more global way too - every generation gets the writing it wants/deserves and it's always evolving. We're not going to see a 90s type show or an 0's type show now; and that's not necessarily a bad thing, we still see well written stuff now, but we see a lot of crud now too. You're mostly right about new BSG, Captain, at least for the first 3 seasons (the end was a train wreck of ruined expectations and ill-conceived wrap-ups, IMHO), similarly Lost, which was clever and fun and well-written UNTIL THE LAST F&$%^@G 15 MINUTES (sorry, that just slipped out), but those were made in the same years as "Two and a Half Men," so WTF. "Firefly" couldn't find it's audience (but Fox coulda tried harder) but "Bones" does and is still on the air? Audiences are fickle and broadcasters are easily confused by shiny things.
RD Moore said just the other day, how Trek is ultimately best as a TV show instead of these flashy, save-the-world action movies, going back to it's roots as a character-driven morality play. I'd hate to see a JJ-Trek version on TV but what's a hit in theaters doesn't always go on TV; despite the billions $ made, there's no "Transformers" or Nolan "Batman" on TV, so hopefully Paramount will wait and rethink it, let someone else run a TV Trek.
I'm going to predict that "Into Darkness" won't get as popular as the first JJ; it'll make money but "IronMan 3" is right on it's heels, another scifi "Oblivion" hitting a week before... and then someone else will direct the 3rd nuTrek since JJ will be on Star Wars.... it'll play out sorta like the XMen series, and the 3rd one will be the last ST movie for a bit. Or at least I hope