Activision won't say which of its studios is making 2020's Call Of Duty franchise entry, but it will say that Call Of Duty: Mobile is the series' largest platform.

For the last six years, the Call Of Duty franchise has been rotating between three of its publisher's internal studios.

Infinity Ward is best known for founding the franchise and producing the Modern Warfare sub-series, Treyarch for coming up with the Black Ops sub-series, and Sledgehammer for leading on Advanced Warfare and WWII, with each assisting the others on their respective projects.

While it's thought that 2020's release will be Treyarch's fifth Black Ops title, Activision remained abnormally vague during its Feb 6 financial report.

One reason might be that Activision wants to keep fans guessing and increase anticipation for the next game.

Another could be that development on the 2020 game has been shared more than usual.

According to the franchise's usual rotation pattern, Sledgehammer should have been making 2020's Call Of Duty but, per May 2019 reporting from Kotaku, Treyarch was then given control for undisclosed reasons.

"We can't wait to unveil what out teams have been working on and we feel great about the content," said CFO Dennis Durkin during an investors call in support of the financial report, advising that the game may not necessarily sell as well as 2019's release; "As is customary, we are prudently assuming lower sell-in (of Call of Duty 2020) in Q4 versus Modern Warfare this past year."

A 2019 subseries reboot, Call Of Duty: Modern Warfare, was up on its 2018 predecessor "by a double-digit percentage" both in terms of sell-through and in-game net bookings - downloadable content and microtransactions - though Activision did not offer precise figures, leaving them open to interpretation.

Additionally, Call Of Duty on console and computer is no longer solely responsible for carrying the brand or generating its revenue.

Activision announced that Call Of Duty Mobile had exceeded 150 million installations and was one of the US's top-15 grossing games for the last three months of 2019; it launched on Oct 1, 2019.

However, Activision-Blizzard's overall net revenue for 2019 was down over US$1bil compared to 2018 (US$6.49bil from US$7.5bil ), including income from Activision, World Of Warcraft and Overwatch studio Blizzard, and Candy Crush studio King.

 - AFP Relaxnews