I'll believe it when I hear it, but with all the album updates and instagram photos of them working hard in the studio, I wouldn't doubt we could have at least a rough mix of something.
This seems weird, though. They're going to release a song in, let's just say, three weeks or so. Okay, then how long until the album is finished? We're just going to sit on this song for another year? If I were them, I'd wait eight months, until the album release date was at least tentative. That way anticipation won't start to die off around February or March and then have to get us all interested again six months later.