Who is the troll god at the end of the 4.1 video? It looks like some kind of serpent god. I'm horrible with my lore etc, so I wasn't sure if it's simply one of the bosses of ZA or ZG (I never did ZG, but I definitely don't recognize him from ZA).
If not, then is this hinting at a possible major boss (read: raid boss) within the troll story line? Or is that just wishful/ignorant thinking on my part?