I like this idea, especially if it tries to keep the realm numbers as even as possible (obviously you can't do anything about people who join and then become inactive regardless). Especially if it involves a quicker way for characters on the losing realm to leave, Sandalak's fall was precisely zero fun on my new character to replace my hero who died, as there wasn't much for him to do and then it was sit back and do nothing while you waited for... something to happen to let you join a new realm? Ended up just deleting him and making a new one, not sure if that just ended up costing more family gold or not (not that Im worried about that).
