Call of Duty’s development is an unusual one. With such a high-budget franchise still being released on a yearly cycle, publisher Activision has taken a unique route for its development.

Year-on-year, COD’s developers have changed rolls in a three-year cycle ever since the release of Advanced Warfare. Infinity Ward, Sledgehammer Games and Treyarch. Other Activision studios, such as Raven Software, help along the way.

With this pattern set in stone since Sledgehammer’s first entry, it’s weird to see that next year’s COD instalment may break the pattern.

According to a report from Kotaku’s Jason Schreier, Call of Duty’s 2020 incarnation is set to be helmed by Treyarch. With Kotaku stating that Treyarch’s next game will be Black Ops 5, the reduction in production time by a third is a worrisome revelation for fans.

Schreier states that Black Ops 5 will be bringing over Sledgehammer’s work, namely their single-player campaign. Reportedly. the campaign will be set during the Cold War meaning that Sledgehammer was, once again, not returning to the world of their fantastic Advanced Warfare.

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The reason behind Treyarch’s involvement is unclear, but allegedly there have been numerous conflicts between the collaborative teams of Raven and Sledgehammer.

While all of this is going on, Infinity Ward is hard at work on, presumably, Modern Warfare 4. Allegedly, Modern Warfare 2 remastered is also in the works by Raven Software.