The shot of the blonde chick walking away from the same place folks are screaming out of, combined with some of the rumor mill running hot about the Pretenders stuff (meetings with Spielberg and Bay, holographic characters, etc.) makes me wonder if the guys writing the TF2 script liked the IDW approach to universal takeover. Maybe these aren't pretenders. Maybe they're goopy human facsimilies, like in Devastation, etc. Just an idea.