Didn't they say in the producer letter a bit back that there's some sort of flaw in the architecture that prevents them from doing elegant, single-feature implementations, and that patch 2.1 is updating stuff server side to allow them to do just that in the future?
As it is right now, my understanding was that to add anything that isn't just an adjustment, they have to shut off the servers and do a full maintenance cycle no matter how small the addition.