Rainbow Six Siege gets no Siege 2: Ubisoft chooses Siege X

• Mills says Grand Theft Auto 6 in November 2026 will likely affect Siege temporarily, but Ubisoft will keep supporting players who stay active.
• Ubisoft still has “unannounced surprises” planned for Siege, while Year 11 Season 4 is set to land around the GTA 6 launch.

What happened

Joshua Mills, creative director of Rainbow Six Siege, has reportedly explained to Gamespot that Ubisoft is not currently planning a Siege 2. Instead, the publisher is working on Siege X, described as a new and improved version of the existing game. Mills said that rebuilding Siege’s systems from scratch would be an enormous amount of work.

The comments came during a discussion about the impact of Grand Theft Auto 6 on other games. Mills said Siege will likely be affected when GTA 6 launches, but that this kind of player-count dip is usually temporary. Internally, Ubisoft is said to be focusing on coordination, setting expectations, and continuing to support the players who remain active during a major competitor’s launch.

According to Mills, Ubisoft does not stop supporting a game when a big competitor enters the market. Instead, the company would “double down” on rewarding the players who keep playing. He added that Ubisoft still has a few unannounced surprises in store for Siege, though he did not share any details.

The timing matters because the fourth season of Year 11 for Rainbow Six Siege is scheduled around GTA 6’s release in November 2026. That puts both games in the same window, although Ubisoft has not shared concrete numbers or an exact roadmap for the expected impact on Siege.

Background

Rainbow Six Siege has been running for years as a live-service shooter, and Ubisoft is using Siege X as an alternative to a traditional sequel. The source does not give specific content details about Siege X beyond it being a rebuilt and improved version of the game.

Grand Theft Auto 6 is currently scheduled for November 2026, according to the source. Ubisoft has not given a timeline for a possible Siege 2, and the current message is that such a follow-up is not on the plan.