Disturbed appeared to be working on their acoustic EP back in February, but a new studio teaser shows the band very much electrified. You can hear some of the band's new material in the video above, which showcases Disturbed working with producer Kevin Churko (Five Finger Death Punch, Papa Roach).
If I had to take a guess, I'd say the band probably tracked the acoustic EP first and then worked on the full-length album, considering they've been in the studio for at least two months at this point. More details on the record(s) should be surfacing in the coming months.