Apparently we are getting our own version of Thorns:
Skin of Earth - Thorns sprout from the friendly target causing $s1 Nature damage to attackers when hit. Lasts $d.
Also on
WotLK Information Wiki: Shaman there is a video showing several abilities being used including Spirit wolves. Its doesn't show much and it doesn't look like the shaman is in enhance gear, but the spirit wolf is doing absolutely crap damage, perhaps it scales with melee stats? Also it definitely gives a pet bar!