From what I've seen*, a barbarian will be pretty similar. What I liked about scouts was that they were mobile warriors. They moved around and got bonuses to damage. Barbarians do that in reverse but the effect is the same. Barbarians get extra movement or attacks when they hit stuff. And they even keep the naturey fluff.

* Note that I haven't actually played a barbarian or looked at their abilities. This is what I've seen a couple barbarians do in LFR.