While Andy Muschietti’s IT movies focused on the Losers’ Club in their childhood and adults, Pennywise had been hunting down children in Derry for hundreds of years. As such, there are countless stories that could be adapted for the big screen, showing how the demonic clown manipulated and terrified the townspeople in days pas. Because while Bill, Bev, and their friends might have finally slayed the monster in IT Chapter Two, he had a long tenure eating children.
Article source: https://www.cinemablend.com/news/2485310/it-chapter-two-writer-thinks-there-are-more-stories-to-tell-in-the-pennywise-universe