Until their next expansion or the one after that or the one after that. Apparently they can do nothing wrong.
---------- Post added 2012-10-05 at 07:15 PM ----------
That's the thing for alot of these dungeons their are no normal modes. Theirs like 4 you use lvilng and then that's it. Basically heroic has become normal and Challenge has become heroic without the reward. It's gimped.