User blog comment:Argorrath/CoD Devs confirms Extinction DLC for future/@comment-4778612-20131216205851/@comment-63.142.198.144-20131218234918

I personally got really bored with Extinction. I like the round based survival and Extinction just doesn't cut it. It is a fun mode but I will always love Zombies over Aliens... unless they add Sigourney Weaver. :)