Why is Sylvanas wielding Xal'atath in one of the panels?
I missed Blizzcon, so I don't really know if it was covered why Sylvanas is in possession of a sentient old god/void weapon. I know that something is supposed to be happening with Xal'atath in the future due to a datamine a while back, but that's it.
It's occurred to me that it could just be a random weapon model, but at the same time, seems a bit of a coincidence for it to be this one.