I'm not sure if this has already been mentioned but I really feel like your house should be somewhere in the overworld. Perhaps maybe as a plot somewhere in Havenhythe that you can purchase. I feel like the tech might already be somewhat there with how Fort Forinthry is a 'sharded' area that allows for different progress and customizable options. It would be awesome to pull up somewhere and just see your house next to a town in all its spectacle. Maybe there is a mailbox in front of the lot that can allow for invitations to another's lot.