I think your changes are a perfect start for a fresh server. This is very cool.
But I am curious about the statistics on existing multi-account households. If one of the main objectives is discovering and documenting a new gaming dynamic with limited characters and single online characters, will multi-accounts be scrutinized? Are there people with 3 or more accounts right now? Just curious what those stats are, if they can be shared publicly.
Also, I think there should be a limit on how much maintenance can be added to structures/vendors/etc., which would compliment the removal of the bank account withdrawal feature. This forces a transaction by someone to maintain that structure, potentially the structure owner, but not necessarily. And it means that if they don't maintain their structures, they go poof and other players can take the spot of an inactive player. Many would might not agree with me here, but it could be a possible solution to keep the landscape and player cities somewhat cleaner and consolidated.