I was building in the underwater condo trying to think of what I could do with the extra buildings and I thought it would be a good idea if you could allow friends to build in specific areas of the condo or “sell” those areas and allow players to launch a condo server by themselves and people who are a part of that deal would automatically join the server when visiting the condo.
It also appears to be the next major update (0.10.0.0) after arcade