http://www.ign.com/articles/2014/05/01/new-era-of-call-of-duty-set-to-be-revealed-on-sunday
Activision and developer Sledgehammer Games are planning to unveil the "new era" of Call of Duty on Sunday.
Sledgehammer tweeted out the announcement, saying "[a new era] of Call of Duty arrives May 4th." In addition, the Call of Duty Twitter account changed its cover image to a photo of what looks like the Golden Gate Bridge with billowing smoke behind it, along with text claiming a "world reveal" is happening this weekend. And to complete the trio of teases, the franchise's official website has a countdown timer for the unveiling.
Earlier this year, Activision announced Sledgehammer Games as the developer of this year's Call of Duty, while also revealing that the franchise is now being developed on three-year cycles between three teams: Sledgehammer, Infinity Ward, and Treyarch. "There are several advantages to doing this," the publisher said at the time. "The first is, of course, quality. This will give our designers more time to envision and to innovate."