Here’s a long-form exploration of Grey’s Anatomy Season 21, covering expectations, character arcs, unresolved threads, and potential directions. After two decades, Grey’s Anatomy has become a television monument — part medical drama, part cultural time capsule. Season 20, shortened by the 2023 Hollywood strikes, ended on a flurry of cliffhangers that felt both frantic and deliberate. Now, with Season 21 (premiering September 26, 2024 on ABC), the show faces a familiar but high-stakes question: How do you honor the past while still pumping fresh blood into the machine?