User blog comment:Argorrath/Treyarch posts a message of zombies; possibly hinting to a DLC 4/@comment-4644266-20130801113407/@comment-94.220.184.152-20130801134218

Because people with bad connections want to wait 2 hours for the download to finish ;)

If you want to play the old maps just play the old games, i'd rather see 2 new maps instead of the old ones