Sorry for bumping this.
Here's the big version of it.

blizzcon_2011_queen_of_blades_by_norsechowder-d4dviyg.jpg

I spoke to the artist himself. He's from Deviantart (just like me) and is maybe from Blizzard (he has many Blizzard-based works). He was just told to draw this. I wanted to get some things out of it while asking him about the stroyline. For example why her arms mutates etc.
He said that he drew what Blizz wanted him to draw, so i didn't really get new information.

Here's his gallery.
http://norsechowder.deviantart.com/gallery/