Without spoiling, all I can really say is it looks like a really interesting fight, and the lore nerd in me is itching to see how this inclusion of out-game media (the Sunwell Trilogy manga) into WoW proper will continue once things like the movie hit. Will we see characters from the comic book?
Seriously, here there be spoilers. Thanks to World of Raids for the video link..
I'm not kidding. If you don't like spoilers, do not pass go, as I promise you there's no chance you'll collect $200.