Looks like it's official: the Fallout 4 teaser website "TheSurvivor2299.com" was a hoax. Sorry, folks. A new Fallout game might be — is likely — in the works, but it's not connected to that site, despite how deep their ARG-ish rabbit hole went.
Don't count on any announcements at the Spike VGX this weekend, either — Bethesda said yesterday they don't plan on being there.
Here's the last message TheSurvivor2299 left: