ONE DAY!

After months of setbacks he finishes perfecting the inventions that should restore Emma and Selena to their former selves before the crash. Helping Emma into the living room where Selena is he says, "I 've invented devices that should restore your voice Selena and your Ataxic Cerebal Palsy Emma, but it's up to you if you want to be healed of course".

Judging by the longing to talk/move about without help in their brown eyes they agree.