Internally, Windwalkers and Frost mages are a little high (though Frost is even more RNG than Fire now so it takes a large sample size to determine this) and
Shadow and Unholy (and maybe SMF Fury)
may be slightly low. Tank single target is tuned, though AE is not, and healer DPS is not tuned.
Overall, damage in the current beta build (the one most players are discussing) is a little lower than damage in our current beta build, so the good news is that many classes will see buffs next time around.