Board Thread:Questions and Answers/@comment-173.25.47.250-20140427205745/@comment-4616231-20140428050829

Carolina saved herself with the grappling hook.

Also it's not a matter of wether he COULD have survived or not, it's a matter of him having no motivation or purpose in the story anymore because all the AI are gone and he no longer has anything to do. Also, everything else from PF was killed off, like the rest of the Agents, Tex, and even the Director himself. So it's pretty safe to say they're getting rid of PF stuff and moving on.

And he can't be Locus because Locus can talk, unlike Maine.