'Call of Duty' 2021 Leak Suggests New Game May Be Another WWII Title On 2/17/21 at 11:49 AM EST Call of Duty 2021 rumors have finally begun, kicking off what's mostly a yearly tradition for fans of the series. While the next installment of Activision's popular shooter franchise typically isn't officially revealed until late spring or early fall, discussions about the upcoming game often start at the dawn of the new year. Today, the potential leak arrives courtesy of trusted games industry insider Victor_Z on Twitter. Reading between the lines of Victor's recent tweets, it's suggested that Call of Duty 2021 might be connected to the World War II era.