The thing that will realllly make me believe, and get excited about, THIS pre-album hype, is that they spent time in Morocco. AND they're working with the dream team, AND they're working with Rick Rubin.
The myriad possible combinations of the above leads me to believe that they really have, or are about to have, something very special.
Not to be a doomsayer or anything, but if they're to put something mind blowing out before they quit, there is no better time than now. Try something radical again before exiting with something great, but more traditional.
Or something.