Russia provided a look at the space station it will make after it leaves the International Space Station. The model of the future station has been shared by the country's space agency, according to a report. The facility would start with four modules and expand to six with a platform. The design would accommodate four people in rotating tours and provide better monitoring of Earth than Russia gets from the International Space Station.
If you want more concrete details you will be disappointed. State media claim the first phase of the project will be launched by the year 2030. Between the years of 2020 and 2035, the second would come. Russia's exit from the International Space Station could take a long time.
In response to the West's sanctions and other measures following Russia's invasion of Ukraine in February, Roscosmos decided to leave the International Space Station. The US and Russia have a permanent presence on the station. Russia has a deal to swap flight seats with the US until the end of the century.
As soon as possible, the country has incentives to get its platform running. Russia can't conduct both Earth observations and low-gravity research without a station. National pride is another matter. Mir was Russia's last self-run station. ROSS would allow Russia to pick up where it left off.