Well, speaking as someone that has interacted, let's get some things out of the way:
- That armor has to go. What, is it padded with three inches of wool on all sides? The guy looks like the Staypuft Marshmallow Man with a skull motif! Last time I looked, Arthas wasn't Fat Bastard's long lost brother, but rather svelt and muscular. Also, he's like 12 feet tall. Overcompensating, much? Is this the result of sitting encased in a bunch of ice for four years? Because if it is, I might follow along.
- Personal interaction to date has amounted to (a) killing me in the spirit world - petty harassment, really - (b) taunting me and my partner in the Tundra, and (c) killstealing from me in Zul'Drak.
I hope they make him a little more interesting soon. And some work on that model would be nice, too, though we have little hope of that happening.