Robocop did a bit of a cop-out here. It'd have been more poignant if he realized that he was really doing all this because he liked to fight. I don't buy his "because of his family" story. He's just going to trust that his family will be fine? What if...
Anyway, since Henry beat Robocop, I guess he's the dad now. They'll need to make a new doll.
- ... the family shows up in Demonland, daughter feels better and wants to play with the other kids, and collapses?
- ... their treatment takes a backseat to some new threat, and they accidentally leave her to die?
- ... the treatment is to turn her into a slime or something?
- ... the heroic forces breach the city and start "cleansing the corrupted populace"?
- ... mom has gone nuts (or has gotten sick herself) in the time he was gone, and can't care for her?
- ... daughter blames Demon Lord for killing her father (a reasonable conclusion), and refuses treatment?
Anyway, since Henry beat Robocop, I guess he's the dad now. They'll need to make a new doll.