I really enjoy this game. The dinosaur variety and format really make the experience feel real. There are some things I don't really like though.
1. DLCs. Many of the DLCs in this game have interesting storylines and compliment the game amazingly. However, I don't think I should be paying any more than 10 dollars for 1 new game mechanic and 3 new reskinned dinosaurs.
2. Unoriginality of Dinosaurs. For the most part, every dinosaur is a reskinned model of another dinosaur. Almost all of the carnivores have the exact same animations to the point of where performing them stretches and contorts the body, making it look pretty sloppy. We are surprised when 1 new animation comes with a dinosaur, and that shouldn't be the case.
3. Sandbox Difficulty. Sandbox Mode is a mode where you can build your own Jurassic World with your own custom settings. The only problem is, you can only use a dinosaur once you have it unlocked in the main game, which can be really hard if you aren't good at the game.
4. Challenge Mode. Many really good dinosaur skins can only be unlocked once you have achieved a 5-Star rating on a specific island on Jurassic Difficulty, which is crazy hard, almost impossible unless you are willing to take advantage of bugs to keep the dinosaurs from breaking out. Building on the Sandbox Complaint, we should be able to unlock Sandbox mode from the beginning, and have access to all unlockables without progression. I know it's a lot to ask, but the more mediocre players like me could really benefit from it.
5. New Dinosaur Suggestions. I know how there will probably never be aquatic or Cenozoic animals added to the game, so here are some genus of Dinosaur that I think could hypothetically be added and the fanbase would positively react to.
Utahraptor
Therizinosaurus
Deinocheirus
Argentinosaurus
Masaikosaurus
Amargasaurus
Shantungosaurus
Oviraptor
Cryolophosaurus
The following are possible new Hybrid Dinosaurs I think could be added to the game and would be popular among the fanbase
Mamenchispinosaurus (Mamenchisaurus x Gigantspinosaurus) (Maybe defend against Indominus?)
Pachyceratops (Pachycepahlosaurus x Triceratops)
Carnoraptor (Carnotaurus x Velociraptor)
Parasaurus (Brachiosaurus x Parasaurolophus)