Sharmeen Obaid-Chinoy's New Jedi Order movie will take place 15 years after the Star Wars sequel trilogy, reigniting speculation and theories on what happens after Star Wars: The Rise of Skywalker. The fate of the main heroes following the final Star Wars movie hasn't been a mystery since the release of Timothy Zahn's Heir to the Empire in 1991, which kicked off a line of stories set after Return of the Jedi. The saga finally continued on the big screen with Star Wars: The Force Awakens, and after the sequel trilogy's conclusion, the future of the galaxy has been a mystery once again, with theories left to fill the void.
https://screenrant.com/what-happens-after-star-wars-rise-skywalker-theories/