I like the idea of Jurassic World being about to genie being out of the bottle. The dinosaurs can no longer be contained on islands. They are on the mainland. Humanity better get used to it.
And what would the story be? How can the characters overcome and achieve anything? Like a) catching all dinosaurs, b) terminating all dinosaurs or c) escape from the planet.
Jurassic Park 4 is a doomed concept, I'm certain of that. It has all the traits of films that bombed and sucked. They don't have an inspired idea for a story, but they want another film. This kind of motivation has never resulted in a good film. I have read so much about shitty story ideas. Like some madman trying to combine human and dinosaur DNA. Another story was about someone using dinosaurs as distraction for a bank robbery. Now it's something like "Dinosaurs all over the world!" but what story is that?