I have a theory after reading something on owl sector that we guardians may be quarantined outside of the tower and the last city. I could be wrong but considering that there will be a new social space on earth it could be possible that we won't be allowed back into the tower. It's just a theory and am not sure if anyone has said it already but I think this would be pretty cool and could tie in with the story and the fact that nearly everyone is infected by now. But I've been wrong before so what do you think