To be quite honest, in interviews regarding all the changes in the Halfhill Farm that you are able to "inherit" in 5.2 there were tons of questions about player housing. And the answers, while always being Blizz-vague concluded that they were "looking into it" or thought it was a "good idea". Now, generally these are the type of answers Blizzard often gives to good, but not yet in the radar questions, it does seem like it could be something like that.
.... I just want more Challenge modes.. More.. Challenge... Modes. That shit was the most fun I have had in this game in years, and I have been a pretty hardcore raider and do quite a bit of PvP for fun at the side.