We are getting house moving feature. If that house moving feature is meant to be cross server. For SE issues and not so players can jump, but maybe in the future. The gil transfer seems to be an arbitrary number so SE could change that for a while.
If SE made a new server and called it Quick Sand Erp Central ( I kid sort of). Designated it RPing only, or probably just RP identifier.
Second allowed free transfer to Balmung onto the new empty rping server. With either house transfer or full refund on Balmung demolished houses.
Third opened this server up to the rest of the servers for free rp transfer. But probably not house transfer. Because that probably happens more technical side.
After a short period of time. Treat it like a normal server and hope that they balance out. The chance of the current Balmung rping to increase the amount of houses they have or where the houses they have might be to great to pass up.