Tipster Kronack sent us a link to this video, which shows the Sunwell Plateau's final boss, Kil'jaedan. The animations look to be his initial summoning and his final defeat. I'm pretty impressed by how awesome he looks, but what really intrigues me is what these animations could reveal about the lore behind the encounter - and what follows it. We still don't know much about the Kil'jaedan encounter, since Blizzard is mostly focusing testing on the Eredar Twins these days -- when the dungeon is even activated -- so most of what we have for now is speculation. That said, there's still some pretty good things I can see in these animations.
Anyway, I'll be using Black Temple and Sunwell Plateau lore spoilers to explain what I think, so If you don't mind that and want to speculate along with me, please, do join me after the jump.