Sandra Oh doesn't plan to return to Grey's Anatomy as Cristina Yang anytime soon. Cristina's storyline ended satisfactorily with her new hospital job in Switzerland. Oh's focus on new roles makes a return to Grey's Anatomy seem unlikely.

Actor Sandra Oh has opened up about the possibility of her returning as Cristina Yang in Grey's Anatomy during a future episode of the series. Oh debuted as Cristina in the show's first episode, continually being a major character throughout her time on the series. She eventually left the series at the end of season 10, after she accepts a job as head of a new hospital in Zrich, Switzerland. This gave Cristina a proper ending as she said goodbye to her fellow doctors.

Speaking with Et, Oh addressed how likely it would be for her to come back as Cristina in any upcoming episodes of the show, such as Grey's Anatomy season 21. The star said that,...

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Grey's Anatomy: Cristina Yang's Return Prospect Gets Honest Response From Sandra Oh - imdb