For those that dont troll like i do. You may or may not have heard that the 4.1 patch is on PTR.
The PTR notes are now available to view online at http://us.battle.net/wow/en/blog/2356431
There are alot of interesting changes to the world, inc 2 new / old dungeons and new raid with the return of Ragnaross. Some nice class tweaking aswell. Please note this is not the final list just the list so far