With regards to the possible upcoming housing relinquishments. . . . .

[Naunet]

Wildstar could not be anything else than instanced plots, since what you can almost do anything you want. I personnaly created a small town in my plot there. You will never see this on FF XIV.
And i can't agree with you Naunet, instanced housing doesn't promote encounters. On wildstar, if you're lucky, you can meet they guy who made the incredible house you are visiting. But most of the time, plots are empty when you visit them.

Odd because I've had exactly the opposite experience. I engage with housing enthusiasts regularly outside of the game and inside of the game to share ideas, plots, inspiration. We chat in zone chat. We explore each other's houses, use them for harvesting Circles, or to farm challenges/expeditions. My group of friends regularly interacts across our housing plots, utilizing them for purposes from simply hanging out to popping over for bank access or a mailbox. We keep organized what challenges we have on our plots and help each other find the ones with the rewards we're looking for.And as I'm a roleplayer, there's an even deeper level of community added on top of all that where people have constructed entire zones, buildings, ships - just incredible structures all to serve as settings for rp. And with the upcoming Neighborhood system, I know of a lot of people who are planning to construct even more complex towns and military basis and centers for their guild/friends/whomever. Basically, I've gotten more interpersonal interaction in WS's housing than I ever got in the time I was with an FC with a house in FFXIV.