Quote from MonkManD3
Quote from kemid
i have an feeling that we might fight an angel dunno in which act but still i just got this feeling
I really hope so!! It would be a nice change if we would fight an angel for once. But the story leading up to the fight must fit, otherwise no. Maybe a corrupted angel?
Well you don't really need that much of a story buildup to kill an angel in D3. Its not like angels are as they are in the Bible. In Diablo they only have their own interests in mind, and a lot of them see Sanctuary and the humans that live there as a threat that should be eliminated (ie Imperius). So even if an angel isn't corrupted, they may be one of a group of angels that wants to exterminate humanity.
As far as Izual goes, I'm pretty sure that either in the Q&A or the Lore panel they confirmed that he is making an appearance.