Director Michael Brookes: "...They provided us with support by giving us like, the models from the films, which you see because they’re ultra-high detailed, they render those in hours per frame, where we have 60 of those frames in a second. We topographize the skins, all that kind of work...."
https://screenrant.com/jurassic-world-evolution-michael-brookes-interview/
In that interview Michael Brooks says: There are hybrids in the game. (plural)
This makes me believe the Indoraptor will also be in the game.
We all seen how it looks in the JW:FK trailers, so there is no reason to not include it in the game, it doesn't spoil anything from the movie.
Makes me also believe that all the new dinosaurs that are in JP:FK might also be in the game and not as a dlc.
These might be the dinosaurs that will fill the open spaces on the website.
Edit:
Further on in the interview they ask: Potentially, there’s post-release content or updates?
And his answer is I cannot comment on that at the moment, I’m afraid. But yes, we’ve got the Fallen Kingdom release in mind, so those things to tie-in with that.
After that I might have jumped to conclusions to fast and a Fallen Kingdom dlc/update is still the likely candidate.
Still it leaves me wondering why he said Hybrids and not Hybrid?
It might be nothing and he might just answered hybrids thinking about Indominus Rex (main game) and Indoraptor (Fallen Kingdom dlc).
Fact is we will have at one point Hybrids in the game and most likely all dinosaurs from Fallen Kingdom.
Maybe not at launch but certainly some time.