I still haven't made up my mind about them to be honest, I had that in mind (I spent hours customizing two more versions of each one of them, to age them and to be visible the difference without losing the characteristics) but...
I don't want to screw things up, the timeskip was also thinking about it, I don't want to delve too deeply into their relationship, they would have to treat him like a child initially, then there would be no way forward other than being a family
As I didn't delve into this family relationship, there are still chances, but that will depend on whether they will be accepted by all of you.