As it was confirmed by Blizzard during the Anniversary stream that killing Malthael released Diablo Prime, as opposed to the individual Prime and Lesser Evils;
"After the death of Malthael, the combined Prime Evil Diablo was released, rather than the individual Evils"
Am I the only one who is kinda let down by this? I was sort-of hoping the next expansion would be all about dealing with all the Evils (seeing Mephisto and Baal in D3 graphics would be pretty sweet), instead of killing just Diablo for the 4th time.
Is there any way, from a storyline perspective, for Diablo to be made into such a threat that players can ignore the fact we've killed him so many times with next-to-no drawbacks?