So where do we believe Trek stands as a " series " right now? If the sequel to ST:XI does well, are we then looking at a return to starfleet in the TOS timeline for a series? I hope not, after spending the better part of 2 decades invested in the TNG timeline( TNG/DS9/Voyager ) I find it shocking to just abandon it now. I can see flashing forward a decade or 2 but not going back 10-12 decades. Just my 2 cents...don't expect everyone to feel the same way.
Who knows. We dont know who would be involved in it. JJ I think has said he would be up for it. If he and his crowd made it, it might well be in the JJ timeline. Although thats not actually a guarantee. Even a JJ series might be a departure from the movies.
If a totally different group are hired and its clear that JJ is not their boss and has no veto over them, who knows what you could have. You could have some totally out of the box Star Trek idea that is quite unlike anything we've seen before in Trek. It will probably have to be to make it as a Showtime series. Which i think is the most likely home right now.
You could have a police procedural Trek. Or something set among people in a badlands type environment. Something more raw, physical, dark and sexual. Or...something not like that at all. I really think its wide open. But something... different. Whatever it is. I just dont see a TNG type series at all, at this point.