The Howie Weinberg Mastering Studio posted this picture on Friday of Isaac and Howie Weinberg which could point to that. Mastering is the stage at which a final mix is made from which all copies will eventually be produced.

Howie Weinberg has worked with the band before, most notably on Good News For People Who Love Bad News and We Were Dead Before The Ship Even Sank.

Thanks to Dani for finding this and posting it to the Board.

Source: Facebook: Timeline Photos