I don’t think I’d mind much if the next expansion took us to the other side of Azeroth, and we find no humans or orcs there.
Imagine a gigantic mountain on this continent that is the home of a kingdom of dwarves, and there’s a borderline class-warfare story division to go with it. Like, the kingdom is divided into two parts; upper and lower.
The peak of this mountain is basically a gigantic diamond, so the dwarves living in the mountain above sea-level consider it holy, and built their halls of marble with shafts and mirrors to redirect the, ‘sacred light,’ of this gem down into their halls, where the white marble captures it and spreads it, lighting the interior bright as day. You’ll find the occasional splash of color from stained glass windows. The place just gives off this feeling of extreme opulence and prosperity. The dwarves you see walking around wear thick white and blue robes. They have white beards, gold beards, copper beards, silver beards… Like, it’s a lore thing that the color of their hair/beards is based off of precious metals. The cornerstone of their society would be orders of Mages, Priests, and Druids. The three blend together as they’re aware that magic is the power of the titans.
Then you’ve got the lower part of this kingdom so deep beneath the mountain that it’s beneath sea-level. Within you find what looks like off-shoots of the Dark Iron Dwarves, but instead of the red glow, you see purple. They seem infinitely poorer than the dwarves living above, dressed more in mail and plate than clothing, and you learn it’s because cloth is expensive in this mountain. They’re also more combat oriented, because they face all kinds of horrible things the deeper they dig into the world. Their society revolves around three orders as well; warlocks, shadow priests, and shamans.
So the fun thing is… these two different kinds of dwarves are actually part of the same exact kingdom. The kingdom itself is ruled by a council with the head of each of the 6 orders sitting on it. There’s actually relative peace between the two groups. The deep dwarves trade their precious metals and gemstones to the high dwarves whom covet such materials as sacred (the deep dwarves mock them as weak metals), while the higher dwarves offer in return food that the deep dwarves can’t grow so far below the world (veggies, fruits, meat, etc…)
Just feels like an interesting set-up. No humans in sight. Heck, turn those, ‘Orders,’ into Clans and it’d probably be an even more interesting set up.