There have been tons of leaks regarding the next installment in the Call of Duty franchise, Call of Duty: Infinite Warfare. Despite the information available, Activision nor Infinity Ward have made statements on the matter.
A document for a video game retailer (reportedly GameStop) has a list that shows which games they need to focus on. So starting May 3, they will be focusing on the next Call of Duty game. Activision is known to reveal Call of Duty games at the end of April/early May.
Keep in mind this is still classified as a rumor and nothing has been confirmed at this time.