User blog comment:Damac1214/Why Call of Duty is Call of Duty, Fallout is Fallout, Halo is Halo, and that they aren't going to be changing anytime soon/@comment-4279007-20130313220513/@comment-3123696-20130313222256

http://www.evilcontrollers.com/blog/fallout-4-tease-confirmed-by-bethesda/

Even if it's something small, we can be sure that they're working on a new Fallout game.