Wei Wuxian also wants the village to become a peaceful refuge, not a prison, and he wants it to be populated. Not just by whoever on the former teams wants to stay, or happens to pass back through later, but by the monsters themselves, given back bodies of their own and another shot at life. Where Typhon failed -- and he has failed, because he's not destroying anyone -- others might still succeed.

He throws his desires behind making Reverie a place its former prisoners can come back to, and travel to other worlds from if they wish. However, he also wishes for caveats: that people can do no harm to each while within Reverie, and that while people can find their way to Reverie from their worlds whenever they wish, they also can't move from it to another world unless they mean no harm to anyone in that other world. 'People' means anyone at all -- humans, monsters, and whatever lies in between. Failure to perpetuate a cycle of harm is, in itself, a success.

For Typhon, he wishes to give him what he inadverdently gave Wei Wuxian. Instead of death, perspective and reflection, the ability to see where he went wrong and what he could have done better, to not reduce everything to terms of 'monsters' and 'other,' but to see the shades of grey instead of just black and white. It's a second chance -- Typhon can live in Reverie with his revived children as he wishes -- but since he'd be bound by the same caveats, he couldn't go anywhere else until he'd dwelled on his failure and buried his resentments and hate. Fail and eventually perish stuck in the same rut, or fail and move on -- it's his choice.