Developer Treyarch is reportedly planning to reveal Call of Duty: World at War II later this year, according to an alleged teaser poster leaked online. Anonymous Protection posted the above image on Twitter announcing a World at War II reveal event for May 4, 2015. The picture states that the reveal will be "presented by Xbox" at 10am PDT on May 4. Last year on the same date Call of Duty: Advanced Warfare was meant to be revealed, though it was leaked a few days beforehand. The Call of Duty series cycles developers, in order to keep to an annual release schedule without restricting development time. Treyarch, developer of 2008's Call of Duty: World at War, is behind this year's entry in the series, and have teased a return to the World War II setting.