As soon as D3 comes out!
Too much broken contents with this game. I bet there were less bugs with the game on release than there are right now. We are still seeing EV bugs, ability delays, even longer load times than before, broken daily quests, and the list goes on.
I have reported that sometimes one of my dot spell doesn't do anything after casting it multiple times on a mob and haven't heard a word about it being broken or getting a fix.