Speculations can begin now
The most frequent question in chats so far has been whether or not the next sequel will refer to the TV-series (specifically if Ruby and Chomper are to be in it).
Seeing that the last sequel was produced after the series chances are that they may mostly ignore the series (same as with the series and movies on how to train your dragon).
In any case I would think it very probably that they will continue to make "stand alone" sequels as in them not requiring any knowledge of the other movies (the only sequel so far where knowledge of earlier movies was helpful (though not compulsory) would be LBT 5.
Nevertheless I would say there may be a chance that the next movie might refer to the TV series for a different reason. Thing is that possible plots within the limited space offered by the prehistoric setting of a "society" of dinosaurs with survival, food and security being the main motivators are sparse (no doubt a reason that fanfictions usually mix LBT with elements that would be off limits in the movies).
Now the TV series opened up a lot of questions which would provide some good plot material for stories that wouldn't be a mere repetition of what we have seen before. So personally I think it might be possible.
I agree with those who hope that the new movie doesn't continue to focus on the youngest audience only (which I'm afraid was a main cause for the disappointment many expressed about later sequels and LBT 13 in particular).
My personal wish would be for the movie to somewhat return a bit more to the somewhat darker setting of the original or the early sequels (which were far from dark but at least there was some real sense of threat when sharpteeth were around, unlike in case of any sharptooth after LBT 9).