Date: 25th September 2019
Jurassic World 3 is officially bringing back the original Jurassic Park actors Sam Neill, Laura Dern, and Jeff Goldblum. Last year's Jurassic World: Fallen Kingdom continued the story that left off with Colin Trevorrow's first Jurassic World movie from 2015, but this time taking the story away from the core Isla Nublar island and setting the franchise on a new path.
In the original "Jurassic Park", Dern played Dr. Ellie Sattler, Neill played Dr. Alan Grant, and Goldblum played Dr. Ian Malcolm, three scientists brought to the island as part of an inspection team to certify the park is safe. Goldblum appeared in the immediate sequel, 1997’s "Jurassic Park: The Lost World", and 21 years later returned for a small supporting role in "Fallen Kingdom". Dern and Neill both returned for 2001's "Jurassic Park III"
What they've both been up to all this time remains to be seen, but it's safe to say that Dr. Grant's apprehension to living dinosaurs will be the same. Also, considering that Jurassic World was meant to be a direct sequel to the first film, it'll be intriguing to see how Trevorrow, along with fellow writers Emily Carmichael and Derek Connolly, manage to either work in her Jurassic Park 3 story arc (being married with a son) or retcon it.
Source: Press Release