The network will return for more drama and romance at the titular coastal resort. âThe broken fairy-tale like ending between Charlotte and Sidney is different, unique and so interesting to me and I wish the cast and crew of Sanditon every success with future series,â he added. This is definitely not the news fans were hoping to hear after their lengthy campaign to salvage the Jane Austen adaptation. The series is based on Austenâs last unfinished novel and was developed by writer Andrew Davies who will return as an executive producer for Seasons 2 and 3. Season 1 followed the story of high-spirited and independent heroine Charlotte Heywood (Rose Williams) who travels to the titular seaside resort where she encounters the broody and stubborn Sidney Parker (Theo James).