Blizzard has stated that the recent announced nerfs to various classes are not complete, and we may expect more nerfs incoming.
We have made burst nerfs to Retribution paladins, death knights, Arms warriors, Arcane mages, hunters, Feral druids and now rogues. Almost unanimously, the nerfed classes thought that nerfs were needed but that our specific nerfs went too far. Nerfing classes is never fun. Players hate it, and ultimately it means we screwed up or at the very least failed to predict new tactics. But we still need to do it for the good of the game when we think it is warranted. There will be more. The recent changes were made in order to make Burst damage in PVP lower for certain classes .
Will the changes indeed "fix" current PVP state? Only time will tell.