There's more than enough amazing stuff in the first two categories to retain wonder for the future. We don't need to pretend that one day frozen corpses will be brought back and able to walk on top of that.
It's not even the whole corpse. Just a head with half a brain. Even IF the freezing was done correctly, there is not techology anywhere on
the horizon that can either create a new body for her or clone her into a biological or electromechanical body. No where close. Curing
cancer is the least of their worries, they need several major advances in several industries to restore a healthy human if they ever can.
And assuming they can in 50 years and her parents are still alive, they are now close to 80, would they really want to raise a two year
old at that point? But it's not going to be 50, probablty not 100, so they will be long dead.