Wrath of the Lich King intro

Say what you want about World of Warcraft, but Blizzard sure as hell knows their cinematics. The intro to the expansion Wrath of the Lich King has now been released, and it’s looking good as always. Arthas is one of the coolest game characters ever, and his metamorphose from good to pure evil in Warcraft III was epic.

My question is, when will Blizzard get their act together and produce a full length animated movie?