Warning: there are MAJOR SPOILERS for Jurassic World: Fallen Kingdom ahead! Proceed with caution.
Within the Jurassic Park universe, no one bats an eye when hearing about cloned dinosaurs anymore. Sure the beasts themselves are terrifying to encounter, but the science used to bring them to life has become more commonplace. However, Jurassic World: Fallen Kingdom changed the game when it was revealed that Benjamin Lockwood's granddaughter, Maisie, was actually a clone of his deceased daughter. This is the first example of human cloning within the Jurassic Park film series, and it opens a whole new can of worms for Jurassic World 3 and beyond. As it turns out, that's exactly the reason why Fallen Kingdom threw in this shocking twist, as now there are new issues to consider. Co-writer and producer Colin Trevorrow explained:
We wanted to talk about the larger impact of genetic power and the potential human impact and the emotional impact of it. And we knew that we didn't want to continue to make movies about the dangers of messing with science. We want to tell a story about where we are now, which is that we have we have messed with science, we have fundamentally altered our world and now we're dealing with the consequences.
Every Jurassic Park/World movie needs at least one kid to put in danger, and Maisie Lockwood, played by Isabella Sermon, definitely filled that role in the latter half of Jurassic World: Fallen Kingdom. However, she became significantly more important when main baddie Eli Mills told Claire Dearing and Owen Grady about Maisie's true origins. When Benjamin Lockwood's daughter died in a car crash, he used her genetic material to clone a new version of her so she could still be in his life... sort of. In fact, it was human cloning that drove a wedge between Lockwood and Jurassic Park/InGen founder owner John Hammond, thus ending their partnership. So far Maisie is the only human clone we know about in the Jurassic Park universe, but one can imagine if this can be successfully pulled off with one person, that result can be replicated.
While Jurassic World: Fallen Kingdom ended with the surviving dinosaurs from Isla Nublar being freed from the Lockwood estate and now roaming free across the United States, the idea of more human clones popping up can now also be explored further. As Colin Trevorrow told io9, it's time for these films to touch on the consequences of this mad science, and now it's not just dinosaurs that people have to worry about. It's also more human clones being created that could tremendously change the world.