This is not about
who I'm quite sure is doomed, but
Ava. In the end she escapes, looks entirely human and is free to roam the city like she always wanted.
However, as far as we can tell she can only charge her batteries by using special panels that only existed in Nathan's house. She doesn't seem to have a power cord that she could plug in to a socket and, being entirely mechanical, can't eat food.
Is there any way this character could survive for long?