Wikimedia Commons/Harry Potter HBO series TV HBO renews the Harry Potter TV series for Season 2, adapting *Chamber of Secrets* and adding *Succession*'s Jon Brown as co-showrunner. May 7, 2026 AceShowbiz - HBO has officially confirmed the renewal of the Harry Potter television series for a second season, continuing the adaptation of J.K. Rowling's iconic novels. This announcement arrives approximately seven months before the premiere of the first season, Harry Potter and the Philosopher's Stone, which is set to debut soon.