This question resolves to "Yes" if in the course of 2026 Nintendo announces a spiritual successor to Ring Fit Adventure for the Switch 2 platform.

In this context, "spiritual successor to Ring Fit Adventure" means a fitness game with dedicated peripherals. Directly using joycons does not count. It need not be a yoga-ring again, but can be anything else that allows actual training.

"Will Nintendo announce ... in 2026" means that the game has to be published by Nintendo, and Nintendo needs to announce it in 2026. It does not need to release in 2026, nor do we need to know a release date. If it is announced still this year, the question resolves to NO, due to the "in 2026" constraint not being fulfilled.

"For Switch 2" means: The game must work with the Switch 2, without any Switch 1 peripherals. Ring Fit Adventure itself would not fulfill this, as it needs the Switch 1 Joycons.