Yes! The hiatus is coming to an end.
Drummer Taylor Hawkins confirmed that Dave Grohl is busy coming up with ideas for the next Foo Fighters album, which may even be a concept album. He told Billboard, "We're getting our ideas together. Dave has his brain working overtime, like usual, and he's got a lot of great ideas, both musically and conceptually, none that I can speak of at this moment, but it's gonna be great. It's gonna be cool."
Hawkins also said he doesn't believe the band has released the record that will ultimately define their career. "You always want every one of them to be the best one you've ever done, and you always think you haven't done your best one. Although some people may feel we have, I still think we haven't written our 'Hotel California' or our 'Bohemian Rhapsody' or whatever. Every time you start a record, you have to be, like, ready to f*ckin' kill yourself or it's not gonna be any good."