it's probably reasonable to expect that every dinosaur that clearly appeared on-screen in the four movies (possibly all five, since its summer 2018 release clearly makes it at least a partial tie-in to Fallen Kingdom), but what does everyone think will appear otherwise?
personally i'm hoping they go for JPOG's species list "specification" of buying the rights to fossil sites and being able to customize your species list that way, since it could give us an idea for what extra dinos could be present. that aside, though, here's hoping that it has most/all of the off-screen dinos from both the movies and the novels, and at least some of the ones from JPOG
Requiescas in pace, Jurassic Park Legacy. We will never forget you.
Rplegacy: Pursue all ambition, ye who enter here!
Join the Brethren!