I still think that their current tendencies would be cranked up to 11. Plus they would turn into a vector for spreading corruption.The harpies would get horns and nothing else would change. They're already acting like demon cultists, so it wouldn't be a big change.
I find it chilling if there's a possibility of Zhara getting corrupted, as I sired a couple of kids with her. Don't know what a demon version of her would do to the kids. Mileage may vary of course, a ton of players probably will not have kids with her ever.


