There are plans on the Russian side. If it will be decided to discontinue ISS after 2026, then the new Russian modules (Nauka, Prichal, and SPM-1) will be undoc

There are plans on the Russian side. If it will be decided to discontinue ISS after 2026, then the new Russian modules (Nauka, Prichal, and SPM-1) will be undocked to form core of a new station. Depending on negotiations it could either become ISS-2, or sovereign OPSEK [0]. But unfortunately I don't have high hopes for those plans to be implemented in reality for a number of reasons. [0]: https://en.wikipedia.org/wiki/Orbital_Piloted_Assembly_and_Experiment_Complex https://en.wikipedia.org/wiki/Orbital_Piloted_Assembly_and_E...