It looks like Sniper Elite V2 will be getting some zombie themed DLC, or possibly a standalone extension in the form of Nazi Zombie Army 2, if the teaser Rebellion currently have up is any indicator. The image URL ends with NZA2_Newsletter_teaser.png, so thats a pretty big clue.
via N4G: pc news feed http://n4g.com/news/1348142/rebellion-teasing-nazi-zombie-army-2
via N4G: pc news feed http://n4g.com/news/1348142/rebellion-teasing-nazi-zombie-army-2