Woot! It's not a big announcement and more detail would be nice but at least we got this:

Additional land will be added for purchase after the release of Heavensward. (Yoshida)
Source

While this is the quickest solution to availability I'm glad they are not oblivious to the fact people want their houses. This just gives us enough time to save up for our Large Company house! Staying tuned to more information and I will add it to the OP.