I just had a thought earlier regarding Jurassic World III, and this involved Karen Mitchell and whether she will return from her debut in Jurassic World.
The reason I think of this is because Karen is Claire's sister, and her sons (Claire's nephews Zach and Gray) went through the Jurassic World incident. And Claire has founded the Dinosaur Protection Group, an organization dedicated to saving the dinosaurs. What would Karen think of Claire's organization, now that the dinosaurs are on mainland, loose. Would Karen support Claire, or would Karen go against Claire?
What do you think of this theory?