NASA confirmed that astronaut Barry “Butch” Wilmore and Sunita Williams, who were initially set to return from the International Space Station in February, will now have their stay extended due to delays. The new crew, known as Crew-10, is expected to arrive later than initially planned, pushing their departure back until late March. To prepare for their arrival, Williams and Wilmore will spend approximately five days training with the incoming astronauts, ensuring a smooth transition.
Source: https://www.washingtonpost.com/business/2024/12/18/boeing-starliner-crew-williams-wilmore-delayed