How about something that would make mentors a useful class (their utility is debatable on other continents anyway but at least they have students there) on BT? Since only adventurers can be made directly on the continent, and no new players can start off there (I think?), this means that mentors on BT are pointless subclasses. I would figure that even if mechanically there is nothing they would teach if someone has already spent at least 14 days on another continent learning the ropes, there is still a lot of different stuff about the Invasions. But I guess that might be a bit too much work to figure out how to do this for one continent.
