Hearthpwn

I am not complaining or anything but just wondering. Will we get just a pack for finishing the last wing of the Knights Of the Frozen Thronse adventure? 

Edit:The tittle should be "Will we get a single pack?"

Maybe a pack, who knows? All we know is we get a new paladin skin, arthas, if we defeat the lich king with all 9 classes, since it will be different for every class..

Probably, maybe not even that

I think the death knight was the main prize but they put it at the start instead of the end so that players who don't have the cards to complete it all without hardship can get it easier and experience the new theme.

I'm quite sure you will get a pack for defeating the Lich King first time with any class in the final wing. Arthas hero skin is an additional reward for those who are willing to do some more work.

This is confirmed. Just like 2nd wing, there will be a chest next to lich king and will open with a pack when you beat him first time. The arthas skin is kind of like a heroic cardback replacement, bonus for overachievers.

In the past, rewards at the end of the wing were pretty typical. It would probably be too much at one pack per boss. They already gave 3 free packs, 3 free arena runs (with kft packs), and a free DK. I wont defend them and they could always give us more, but its already more than we could normally expect.