My understanding is that Fox has reserved first dibs on any more TV productions for 10 years. I also am given to understand that Universal is favorbly inclined to sequals if the movie does reasonably well.
The upshot is that any more TV is a long shot for now (although three films can use up a good chuck of that 10 years) but that more movies has a better than average chance.
Me, I'd prefer the TV series because I hate wating two years or so for my next helping....but as long as they keep flying...
BUMP