This post http://us.battle.net/wow/en/forum/topic/1764415027#16 confirm that RB was not nerfed, the 80% value is at lvl 39, it is still 110% at lvl 85.
Also from GC: We think Fury dps is about right or perhaps slightly low on live, so we don’t intend to lower their damage overall. Please keep in mind that the final list of class changes will likely be far longer than this. ( http://us.battle.net/wow/en/forum/to...5027?page=2#34 )