Fallout 4 might be on the horizon, at least if you want to believe the discoveries of Reddit. The website, thesurvivor2299.com, has apparently been registered by Bethesda. Morse code beeps in the background, which translates to "11-12-13". A countdown is counting down towards December 11, which would be the date 11-12-13 using European dating style. The conclusion is that on that day, Bethesda will announce the next Fallout game.
There are hundreds of comments on the Reddit's /r/fallout board digging into the reality of this site, and it seems likely that it could be real, but there is a chance it could be fake. I'm leaning towards it being real, simply because it makes sense. Bethesda has to be working on something, and Fallout 4 wouldn't be that big of a surprise.