Call of Duty 2020 is based on the Black Ops franchise and was developed by Treyarch Studios, which released Black Ops 4 last year. It used to be Sledgehammer Games to develop a new COD, but Activision has reportedly removed the developers from the project and taken Treyarch to the top.
Call of Duty 2019 will be presented at the upcoming E3. It is anything but officially confirmed that this is Modern Warfare 4. After the new Call of Duty this year, Black Ops will return next year with another new signing. This time, however, there will again be a single player campaign.
According to a report by Kotaku, Call of Duty: Black Ops 5 is being developed primarily by Treyarch Studios, with Sledgehammer Games and Raven Software playing a supporting role. The single-player campaign will take place during the Cold War (possibly Vietnam) and across generations so it may be released along with PS4 and Xbox One for PS5 and Next Xbox.
Call of Duty: Modern Warfare 4 is the new game that will hit the market later this year and be unveiled at the upcoming E3. It is currently being developed by Infinity Ward, who previously worked on Call of Duty: Infinite Warfare.