The Witcher: Codename Sirius is seemingly due to feature co-op if recent job listings at CD Projekt Red are anything to go by. Sirius is one of several Witcher projects that CD Projekt Red has in development following the crash and subsequent revival of Cyberpunk 2077, led by The Molasses Flood.
CD Projekt Red's trilogy based on the world of Andrzej Sapkowski ended with The Witcher 3: Wild Hunt, which offered a conclusion to Geralt of Rivia's journey. Since then, CD Projekt Red has released the niche but critically-acclaimed Thronebreaker: The Witcher Tales and Cyberpunk 2077, a far-from-niche open-world shooter that incited one of the worst commercial disasters of recent gaming history. Several years, patches, and a universally adored anime adaptation later and the Cyberpunk name is repairing its reputation piece by piece, but CDPR developers are seemingly keen to be returning to the Witcher franchise. One of the projects in development is known as Sirius.
Links to recent job listings at CD Projekt Red were posted in a Reddit thread by Awkward96 and suggest that Sirius will feature "co-op, PvE, a class system, multiple game modes, and social activities." Other openings include a Senior Combat Designer, Narrative Director, and Technical Game Designer which seek someone capable of delivering various types of enemies, non-linear storytelling, and procedurally generated systems respectively. It was already stated that Sirius would feature multiplayer, something that CD Projekt Red has been increasingly building toward in recent years.
Comments theorized that this could lead to a gameplay experience reminiscent of The Division but focused on monster slaying. The Molasses Flood has previously developed The Flame in the Flood and Drake Hollow, two games that focus on crafting, exploration, and survival. The latter release includes online co-op, which will hopefully prove to be an invaluable experience for a cooperative Witcher experience.
CD Projekt Red is due to be overseeing the development of Sirius, and it is not the publisher's first attempt at an online game. Gwent: The Witcher Card Game was born out of the popularity of The Witcher 3's mini-game and has hosted countless competitions over the years. It was sadly announced late last year that there would be no new cards or content added to Gwent: The Witcher Card Game in 2024, but many from the development team are likely to be reassigned to other Witcher projects as has already occurred.
The Witcher: Codename Sirius is in development.