User blog comment:Argorrath/Treyarch posts a message of zombies; possibly hinting to a DLC 4/@comment-50.46.177.41-20130801001343/@comment-356904-20130801001915

http://i15.photobucket.com/albums/a383/jonnierose/25603898.jpg

Not sure how you arrived at that last conclusion when there's no names in any of the images.