https://deadline.com/2024/05/jason-george-return-greys-anatomy-season-21-1235944788/

According to sources, there is no deal in place and the exact capacity in which George would return to Grey's Anatomy is unclear but talks are ongoing, and the intent is to have him back full-time on the show.

1 Station 19's Character Return To Grey's Anatomy Makes The Perfect Owen Story Possible (https://screenrant.com/station-19-finale-ben-warren-greys-anatomy-return-owen/)

Realizing Owen's program idea in Grey's Anatomy season 21 can benefit from 1 Station 19 character joining Owen, were their return confirmed.

Jason George has closed a deal to join the main cast of "Grey's Anatomy" for the upcoming 21st season.

https://deadline.com/2024/06/jason-george-return-greys-anatomy-season-21-ben-warren-1235971421/