I love these ideas!

One reason I’ve always wanted an instanced housing option added goes along with your idea of open world homes: the ability to make a plot that looks like it’s anywhere in Eorzea! That could also lead to creating smaller (or larger) instances with custom homes like your caravan idea, or campsites or caves, etc.

The roaming minions like we have on the island would be fun too, and I’ve long wished I could place my retainers indoors and give them a lot more customization and action. And being able to put furnishings anywhere, inside or out, in general would be great!

Build mode upgrade would be a dream come true… maybe we get something like that eventually as they work on other interior design options. Even just more unique layouts would be appreciated!

Door locks seems like something we should already have. lol

Island prisms… yes! Bonus points if the ground of your plot becomes changeable, like the flooring in the interior! I’d like the ground to look different for each season!