The only dinosaurs of JWE2 that will need new accurate movie designs, since they will appear in the upcoming Jurassic World: Dominion in 3 months, are Iguanodon, Dreadnoughtus, and Giganotosaurus (both two formers appeared in the prologue). Parasaurolophus will need a new 2022 variant.
None of these will likely happen, but I'd also like to see the Cretaceous feathered T. rex, the teal faced Pteranodons from the Prologue, the "Demon"-coloured Carnotaurus, the male Nasutoceratops, and the adult Allosaurus.
Yes I doubt that any original JWE designs would get scrapped. Hopefully the feathered T. Rex and Dreadnoughtus from the Prologue will make it into the game. I don't have any doubt that all species in the film will make it
The "canon" designs for Iguanodon, Dreadnoughtus, and Giganotosaurus will be alternate skins. For the latter two I'd rename the ones we have to closely-related species like Patagotitan and Mapusaurus since the designs are very different between game and film, and have the film designs be separate and the correct names.