More info here:
https://thewarwithin.blizzard.com/en-us/
I’m glad for all the people who like them, but they’re so disappointing to me, personally.
I guess I’m skipping this one straight to the following expansion, Midnight.
EDIT:
YES, THEY ARE NEUTRAL, they’re for Horde players as well!
Dwarves on the Horde.
Heh nice.
I just can’t.
At least we’re getting class customizations
This is terrible news because it means I have no reason but to keep rolling dwarves and now my dwarf heart cannot be contained by MERE FACTIONS.
Seriously? Uh yes!
Heck yes! 
Another Gnomish allied race wouldn’t hurt either.
Alcoholism in the Horde is going to skyrocket.
Hmmm, so Horde will have Dwarves now?
Correctomundo
That female dwarf with the beard though! 
finally
The worst part is: The Wildhammers aren’t an Allied Race, although they deserve to be one.
they are ugly ngl
Yea another ENTIRE expansion of build up. Dragonflight basically was entirely just filler at this rate.
omg I didn’t even think of this, but you’re totally right
How exactly is Midnight going to be better? Its being made by the same people. Just except the continual downturn of the game into obscurity, Blizzard has.
It will be focused on Quel’thalas, elves and reuniting all elves under one banner, the story is compelling to me. 
Or it will be focused on QUel’thalas, because that is where the new ultra even more powerful immortals will be destroying the elven lands scattering them forever.
I have a strong feeling -you know who- will return from the maw for that one.
So much better than Dracthyr.
If a lack of interest in a single new race is enough to make you skip an expansion, then you probably wouldn’t have bought it, anyway.