Albums usually leak these days when the master discs go from the studio/label to the CD manufacturers. Somebody either rips a CD on the production line, or steals one and takes it home to rip. With watermarking individual evaluation discs, and therefore the ability to point the finger at the the exact person who has been given it, music journalists and the like won't risk passing copies around. It will probably escape online 1 - 2 days before the 16th, and then people can be disappointed with the sound quality of it before receiving the CD/Vinyl and go wow!