Well, Cata "should" come "soon" i think that is what is talking about.. and lock + priest will have a hard time in Arena in lvl 80, they are way to squishy, things should be alot better in cataclysm tho my tip is play up your team, and just play as much as you can to get "used" to the team(the lvling part is just the beginning) and hope for a fast cata release!