While some regions of Diablo 4 are instanced
Where affixes are concerned, Blizzard has verified some fresh ones for Diablo 4. There's Demonic Power that increases the length of debuffs and harm. There is Angelic Power that raises the duration of recovery and fans. There is also Ancestral Power that raises the chance for on-hit consequences. Blizzard is considering to flip all 3 stats into prerequisites for affixes in Diablo 4.