The Testaments, a sequel to The Handmaid's Tale, is revealing more about Aunt Lydia's past. The series is also exploring the backstory of other characters, including Aunt Vidala, and introducing new plot twists, although it is unclear how closely the show follows the original book. The story of Aunt Lydia and other characters is undergoing a transformation, with some outlets suggesting that the show is rewriting parts of the original narrative.