I like your idea, it just needs a good setup. Here's my trilogy outline...
JP4: sPecial unit is set up to track down illegally cloned dinosaurs being sold on the black market all over the world. Team arrives at a large, remote, private menagerie and cloning facility owned by a rich *****ebag and find themselves being hunted by his security team as they make their way through the labs and paddocks.
JP5: Cloning of prehistoric animals becomes more widesPread and their success has allowed certain legal exceptions for zoos and laboratories. When scientists inadvertently resurrect an extinct virus that's relatively harmless to dinosaurs but deadly to humans however, the only hope of curing it lies in obscure footnotes detailing it's prior discovery in the original Jurassic Park. The team from the previous film must head to the original islands and find the cure if there's any hope of saving mankind.
JP6: 10 years after the events of the previous film, 95% of the human race has gone extinct and the world has drastically changed. Creatures from every epoch of the Earth's history roam it together in a fierce struggle to survive dangerous new ecosystems. Equally dangerous are the roving factions of weapon collectors seeking to start a new world order and willing to kill any men and kidnap any women who don't join.
So there's my little trilogy idea.