Jurassic World: Dominion's IMAX-only preview is filled with Easter eggs and story details that set up the upcoming final installment in the Jurassic Park franchise. One sequel to Steven Spielberg's Jurassic Park seemed unlikely at the time given the story ends on an unambiguous note, plus Michael Crichton hadn't written a second novel yet. But the film's mind-blowing success eventually gave way to two more sequels, Jurassic Park: The Lost World in 1997 and Jurassic Park 3 in 2001. It just took another 14 years for another film to enter the series - Jurassic World in 2015.
From there, Universal Pictures has reinvigorated the entire Jurassic brand, which includes a short film, Battle at Big Rock, and an animated series on Netflix, Camp Cretaceous - both of which tie into the films' stories. So far, both projects have built on events in Jurassic World and Jurassic World: Fallen Kingdom, and ultimately, Camp Cretaceous will somehow tie into the events of Jurassic World: Dominion; it's just unclear how and when that will happen. So for now, the only thing audiences have to go on regarding what to expect from the third Jurassic World movie is the IMAX preview.