Shadow preists and warlocks were still dominating. We don't have an enh shaman in the raid (or guild atm) though. Rogues went up a lot in the overall-dps meter (including trash) though. I don't remember seeing a rogue 2nd in that since we started TBC raiding.
Also a rogue won the karathress fight. The only fight with a top dps being a rogue before 2.1 in our guild was Lurker, otherwise always warlocks/spriests/mages topping off any damage meter.
So there's definitely some changes, anyone got more data?