Assuming arc plots are inevitable, I hope they will be careful to also make the individual episodes satisfying. Not just getting from B to C in the season plot.
^ This thought prompted by currently rewatching ENT season 3, though it's pertinent to pretty much all dramatic TV these days.
DS9 struck that balance well, I think. I'd like to see a Trek not only through the stars but also see diversity through the eyes of various roles within the UFP, various three-dimensional alien/human cultures, fantastic combinations of various movie genres like mystery, action/adventure, horror, romance, fantasy. Go big or go broke.