I'd be more than happy to have no Hybrids at all, but seeing as this game is based on the films, by extension, it's at least going to have the I-Rex and Indoraptor in it. Regarding the Stegceratops, the only design we know to exist (as far as I am aware) is the one in the Mobile/Tablet game, and as such a design for JWE wouldn't necessarily look as bad; it's not as if the I-Rex or Indoraptor specifically look like the Rex or Raptors.
I do hope these DLC packages contain Dino's that can be purchased individually though; I want the Carno, but if a DLC pack is (what I expect to be) £15, and the other Dino's in the pack don't exactly inspire, £15 is too much for a single creature. I hope we can pick and choose which Dino's we want; maybe £30 for six of our choice or something? Plus a few other toys (cause £5 per Dino still seems a bit excessive when it's just a Dino to look at).