I'm jumping in here without reading all 230+ pages of this thread, so maybe this has already been brought up. But you know what I'd like to see? Bring back the damn artifact weapons. No, really, it was a perfect set up for future content and they passed on it. Every new expansion just adds in another 10+ appearances for every weapon, whatever the new system or macguffin they come up with could be built right into it. Like:
"Shit, Champion, you blew your artifact load making that sword stop doing whatever in the fuck it was doing."
*flashy titan machine crap goes here*
"Champion! Your artifact weapon! It can now absorb Azerite instead of artifact power!"
And then:
"Maw Walker, your flashy weapon can't use it's planet blood powers cause you're not there anymore, duh."
*flashy first ones crap goes here*
"Amazing, Maw Walker! Your weapon can now absorb Anima!"
Is it stupid? Yes, it goddamn is, but it also frees up dev time to making everything the hell else not suck.