Hoping to be wrong, but what they've shown already has the same hallmarks of the Garrison system that made them call it a failure. If that was anything to go by, it'll go like this:

* Release housing system suitable for only the two main races.
* Races that aren't orcs or humans don't want orc or human houses, so they don't interact with the system, waiting for the promised "houses for other races will be coming later."
* Blizzard declares "not many people interact with the system, so we're shelving it" because only orcs and humans interact with the system, and they're a small percentage of all races played.
* Blizzard congratulate themselves on another "we tried housing and nobody liked it" Monkey Paw finger curled.

I mean... probably.