Some interesting comments on the /Filmcast Ep. 250 podcast.
The commentators speculate that Trek 3 may get the pieces in place for a return to TV. The also talk about a reduced budget for the next film and what a troubled production Into Darkness
was. They also touch on the (much-debated) disappointing(?) performance of the second film.
It's a pretty good listen; the Trek stuff starts at their Film News segment which is at 30:20.