That Fallout countdown site was a big fat hoax, one that cost its creator $990
Remember that mysterious countdown site that seemed to be building
up down to some exciting Fallout-related announcement? Turns out it was a well-made hoax. thesurvivor2299.com is currently displaying a video of someone playing 'sad violin' music above a brief acknowledgement of the "hoax/rickroll" - offended parties are being directed to the snotty, sweary missive on this page. To sum up: while there still might be a Fallout 4 on the horizon, it ain't being announced any time soon.
As to why he made the site, his reasons where slightly more
altruistic naive. "I wanted to force Bethesda to reveal something during VGX/ on 12/11, and bring /r/Fallout community together (for at least 3 weeks) Unfortunately, this plan Failed."
But what of the recently registered Fallout 4 trademark? As with the Half-Life 3 trademark, it's also a fake. Back to your underground vaults, Fallout watchers, because there's nothing to see across these barren wastelands.