I am about paragon 130ish now and have finished the seasonal quest line (not the rewards).
My biggest issues with season itself is that it is dependent on grim favors but are capped at 10 still. There is only 1 crow per seasonal zone and none at all in Helltides. I still have to leave to turn them in at the tree and when I come back, the “group” I was slaughtering blood maidens with has disappeared forever.
I think gating seasonal progression to zones is a bit restrictive to how seasons should be enjoyed. In season 5, Mothers Gifts could be earned anywhere, allowing you to play how you want to and still earn rewards AND you could repeat the last reward. There should be headrotten sprinkled around in just about everything we do so we can earn currency while leveling up our character without having to stay in seasonal zones and grind away.
I wont comment on class balance, that will always be an ongoing discussion and tweaks to be made. I want this thread to be about the seasonal theme and the seasonal content itself as well as recommendations on what would be interesting going forward.