It is not just rogues, the balance is off in a very disturbing way for a lot of classes:
Fire mages were below tanking specs, arcane mages only slightly better than that. (should be fixed with recent buffs hopefully )
Frost mages are ok, but need gear to perform that way. Spamming frostbolt at lower gear levels without any procs is sad.
They could use a frostbolt buff, or an increased chance to proc Fingers of Frost or Brain Freeze.
Warlocks in general were crap. The recent hotfixes should make them middle of the pack, but not much more than that I am afraid.
DPs shamans: no comment
The only pure dps spec that is competitive is hunters, and even they are pinholed into one spec, since the other two are crappy as well.
But what pissed the hell out of me is Gladiator. Why was there need for a gladiator stance?
Instead of fixing dps shamans, warlocks, rogues, mages and even shadow priests and tuning those classes/specs right, they had to add a third dps spec to a hybrid that already had two and they did not even bother to tune the two DPS specs they already had? (Fury and Arms were crappy too, and still are)
I have never seen such a messed up DPS chart before.
Basically the best thing you can be right now is a Melee DPS spec from a hybrid with a tanking spec (WW monk, DK, Glad warrior, retri pala or Druid)
I am so baffled.
I hope results will vary in a real raid setting.