It's not going to be housing like the wards. In fact, I wouldn't really class it as housing at all except in the loosest terms - There will be buildings, you will be able to walk into into them
I'm expecting set models, set positions and if we are lucky, some customisation via a 'hook system' that would let us place specific items in a particular place.

If people are still expecting this to provide instanced houses like we have in the wards, I think they'll be sorely disappointed.