I'm surprised to see Imperius on mortals side I thought he will be with Malthael and we may fight him. Not sure what changed his mind about us but maybe the fallen angels (very curious if Malthael have a hand in them becoming fallen) are part of the reason?
Since Malthael will 'die' do you think he will be reborn again from the crystal? He maybe death but in the end he is still an angel. Will he try to destroy humans again or try to understand them if he come back?