i'm waiting for an update too. My team is at 31 now (no RAF), so no need for any AOE right now. Instances have been extremely easy so far, even easier than with 5 x shaman. Did RFC at 14, SFK at 20, BFD at 23, RFK at 26 and now SM:GY at 30.
5 x rejuv is just godly, boss fights are trivial up to now, thrash was more enoying untill i got nature's reach (less threath) on everyone except my main. larger pulls are relatively easy thanks to root. Questing is a lot faster than 5 x shaman now thanks to insect swarm, just run around and dot, i never need to stop moving around!
At 40 i get my first AOE skill, and keyclones built-in mouse broadcasting system seems just to slow for reliable AOE'ing!