I think the state of dungeons is pretty widely accepted at this point. It doesn't help that difficulty is dead on arrival because we are significantly overgeared for the content on release (Extreme trials have the same problem).
I'd rather we get something like WoW's Mythic+. Though, alot of the difficulty there is on trash pulls and our trash pull combat mechanics are too simplistic for that. So instead, tinker with the difficulty in a way we're good at. Just some 5 min ideas: periodic stack markers from start to end, randomized and faster mechanics, layer mechanics that weren't in the boss fight before, etc. I'm sure having more time to think about it would produce some better ideas.
This opens a can of worms, but we desperately need content with a scaling system so that the gear we get is not completely worthless in odd patches where there is no Ultimate. Which, at this point, looks to be 2/3 of the expansion.