If you mean there were plenty of available houses before auto-demo was suspended in March, that was only on JP and some EU worlds. Even then, NA housing was effectively full. There were only a handful of available houses scattered around the data centers and they were always grabbed up within minutes if not seconds of the purchase timer expiring. NA hasn't seen a decent number of available houses on any world since Shadowbringer's launch.
They will be enabling auto-demo again at some point in the future, possibly with the release of 5.3 though I wouldn't count on it being that soon. It definitely would happen at the same time as a patch maintenance. That still isn't going to make nearly as many houses available as NA worlds need.
