What really bothers me is that some people here literally don’t care about lore whatsoever when it comes to WHY certain races become available during each expansion. They just want what they want, and that’s all that matters, and anyone who thinks otherwise is wrong.
So far we know of 3 major “races” in this expansion (if you haven’t done Beta yet, and I will never play Beta for free). That would be the Earthen (our playable race), another HUMAN (which I’m sure the Horde would love to play as a playable race, amirite?), and the Nerubians.
Now I’m sure everyone would love to play as a Nerubian since having all those arms would be super neat to do stuff with, but it wouldn’t make any sense to just start this expansion off with playing them, since I assume they are seen in general as bad guys from the start, so making a new one and sending them through the leveling zones wouldn’t make any god damned sense.
BUT, maybe we could see them as a possibility in a future expansion, depending on how their role plays out in this one. Or perhaps not. It’s not that big of a deal.
Really though, when choosing races, it all has to be “why would these characters fit as playable in this expansion?” And of the 3, Earthen seem the only reasonable option. And they are not Dwarves. They are pre-Dwarven. It’s literally the same thing as declaring Elves to just be another Troll.
Really the only “joke” race we’ve had in game were the Vulpera. And it’s probably just because Blizzard wanted something on Horde that wasn’t “scary” for the people who just didn’t want to play Horde for their lack of friendly-looking options. And I’m fine with that. They gave Vulpera a decent reason to join Horde (they were the first one they made contact with, and Horde helped them out of a jam, which is basically why Tauren are in the Horde as well).
TL;DR - Since the first expansion, there had to be an in-lore reason for the races to go to each faction, and just because it’s a race you think is cool, doesn’t mean it should be playable, otherwise we’d all be playing Old Gods and Dragons (actual dragons) and Titans.