Disney owns Ice Age - a franchise about prehistoric animals that would work fine in Dinoland (and add some diversity regarding animal species to the park!). They did not create it, but they have shown that they're still willing to milk the franchise even after shutting down Blue Sky Studios in an attempt to kill Nimona. And if we're going to say The Good Dinosaur doesn't deserve anything in the parks because it was a flop, the most recent Indiana Jones movie was a flop too. And Disney also considered The Princess and the Frog a flop (it wasn't, but they considered it one), but THAT'S getting an attraction.