there was sort of secret conference or something or other giving information on the fallout 4 game that most of bethesdas teams is supposedly working on, and one of the people there gave that information out to the public via an article on the internet somewhere. I only vaguely remember reading it but it looked without much doubt that the fallout 4 game would be coming to the world in the year 2014 (probably). I really don't see why the game wouldn't come out.
as for the 2299 i would say thats the year that the fallout 4 game would take place, which is probably a pretty obvious observation.
That's the thing... there is no certain evidence that this has anything to do with fallout, besides the somewhat weak evidence I was able to find. I'm just hoping it's a Fallout announcement and not something else, maybe even a trailer? (I wasn't even suggesting it might be a release, since that's just insane!)