Everyone is just doing OP damage atm, I wouldn't expect any meaningful arena play from this point on until things balance out which might not happen until wotlk. I dueled a ret pally yesterday as my lock (demo, full S4)...he opened with HoJ and killed me before it ended. It was pretty funny

The new org arena looks like it will totally favor ranged DPS, check out some vids of the map, its wide open with the only los being the elevators