According to a Reuters article, Russia's state space enterprise Roscosmos has informed NASA that it plans to stay in the programme until at least 2028 after implying that it planned to depart the International Space Station cooperation after 2024. 2028 is the target year for the launch of a new Russian space station, but Roscosmos intends to continue its involvement with the ISS until that time.
Yesterday, when Yuri Borisov, Roscosmos' recently appointed director, informed Russian President Vladimir Putin that a decision had been made to exit the ISS collaboration after 2024, it caused a stir. The announcement, however, was ambiguous and did not explain precisely when Roscosmos intended to depart after 2024, merely stating that Russia wished to shift its attention to a new space station it was creating known as the Russian Orbital Service Station (ROSS). Furthermore, according to a NASA representative, the organisation hasn't received "any formal word" from Roscosmos, and according to NASA administrator Bill Nelson, the organisation hasn't "been made aware of decisions from any of the partners" on the ISS.
According to Reuters, it appears that Roscosmos officials spoke with NASA on Tuesday and let them know that they intended to continue their involvement with the International Space Station (ISS) until the ROSS station was operational in 2028. The assistant administrator for space operations at NASA, Kathy Lueders, told Reuters on Wednesday, "We're not getting any evidence at any working level that anything's changed." A request for comment from The Verge did not receive a response right away from NASA.
The International Space Station's two main partners are NASA and Roscosmos, and both organisations are responsible for running the craft and ensuring that there is always a human presence there. Concerns over the ISS partnership's survival have been raised in light of the escalating hostilities between the United States and Russia over the latter's invasion of Ukraine. While NASA has consistently reassured the public that operations are continuing as usual on the station, Borisov's predecessor, Dmitry Rogozin, made many threats regarding Roscosmos's withdrawal from the ISS agreement.
Borisov is a relatively new player at Roscosmos, and Rogozin was renowned for making outrageous threats, so it was uncertain how seriously his statement should be regarded. However, according to a twitter thread of the story, Vladimir Solovyov, the flight director of the Russian section of the ISS, was interviewed by Roscosmos on Tuesday and provided more information about the plans for ROSS. He mentioned the fact that ROSS will be constructed in two stages, the first of which will start in 2028, and said that he thought it was essential to keep running the Russian section of the ISS until then so that there wouldn't be a void in crewed missions to orbit. Additionally, Rogozin has stated that the ISS and the next Russian space station will need to share space.
Therefore, there is no need to start worrying about the future of the space station just yet. The spacecraft will reportedly continue to be used by NASA until 2030, and Roscosmos will likely be there for the most of that period.