User blog comment:Argorrath/Treyarch posts a message of zombies; possibly hinting to a DLC 4/@comment-9010268-20130731160831

Here is what it says without all the cursive if anybody is interested: "

September 22, 1917

When we began the site excavation, our group could not have predicted the dark path down which our work would lead us.

The Doctor remains both adamant and optimistic that the potential applications for the new found element are worth the associated risks. I concur with the sentiment, but feel increasingly anxious as to the changes I am seeing in my oldest friend…"

Also there is a second note and maybe this artice should be updated with it, source: http://mp1st.com/2013/07/30/rumor-treyarch-teases-next-black-ops-2-dlc/http://mp1st.com/2013/07/30/rumor-treyarch-teases-next-black-ops-2-dlc/