What I've been thinking about lately is the last possible room in VoA. There is 4 normal elements, air, water, earth and fire, but there is also the fifth element, Aether, or material of the universe if you want. After the celestial steed and the whole VoA's last boss is Algalon, WoW Website says so thingy .... Doesn't Algalon fit with Aether?