Hoskins wanted the Raptors off of the island for experimentation and weaponization in Jurassic World, and the sequel could take a big step towards that thanks to some unfortunate intervention by the volcanoes.
If volcanoes ultimately threaten the habitats of the dinosaurs in Jurassic World: Fallen Kingdom, then this possible change in habitat will play an integral part in the development of Jurassic World 2’s story, and the forced removal of the dinosaurs from their homes could represent a perfect catalyst to explore that concept.