I under stand some hardcore ppl dont want minthara on a good/neautral run, but I think the non-lethal is a pretty ok solution as I stated before. If ppl wanna go murder-hobo as you had to before to get her just do it, nothing is stopping you. And I dont see that Larian will flesh out a more rewarding evil run unless they wanna do it through a DLC which they made pretty clear wont come.
Do we know the ETA to the non-lethal solution? My google-fu is failing me...