I'm wondering why one earth some people feel that bothered by the idea that everyone having a nice housing? Is that the word "everyone" that bother them that much? It is not as if people were asking something technically impossible. BDO or Wildstar show there are solutions (without timer).
An evolutive and upgradable instancied system would be technically possible and for more fair, lively and up-to-date than the current wards system where most wards are dead empty except the few ones with a populated and active FC (especially the RP ones). Since ARR it is visible. More wards turn individual oriented, more they are empty and ghost town.
The interesting thing in a game, a virtual world is it is not the reality then it is possible to get ride on the real world limits. Why on earth do you want these limits in a game, a virtual world?