It’s right there in the trailer. “The Saga Comes to an End.” Star Wars: The Rise of Skywalker is the final film in the Skywalker Saga that originated back in 1977. But apparently, the end doesn’t mean everything that’s happened or everyone who has been introduced gets locked away, as Lucasfilm president Kathleen…
Source: https://io9.gizmodo.com/the-rise-of-skywalkers-arrival-doesnt-mean-well-never-s-1834111838