So there are a lot of complaints of various sorts here about various things, but it's often very...ad hoc (and frequently contaminated by trolls). So let's slim that down with a thought experiment.

Suppose (a) we keep all the content we have right now (so no "Expert roulette is now Savage level" stuff, but we COULD add a new "Savage roulette") and (b) we keep the general systems in place (so no "they completely rewrite the netcode so PvP is more responsive") type stuff. That is, given the game we have now, without taking away from it, so that all the stuff that exists and is enjoyed now is retained:

What content do we currently not have that you want to see added to it?

[For my part, I think every expansion should have a Bozja/Eureka for people to burn downtime in, especially with 2 week longer patch cycles.]