I hope that all 122 species from the first and second game return as base species, and if that's the case, there should be a more effective search system and categorization feature to make up for so many species and to help players more easily find the animals they want in their park without having to scroll through the species list.
Anyway, if the POV feature is returning, I think it should be improved on more, such as an option to turn on or off "POV Survival Mode", where (when turned on) the player in that mode has to survive aggressive herbivores and hungry carnivores. Yeah, I know that Jurassic World Evolution franchise isn't about survival mode and is basically a tycoon-type game, but this survival mode would make the POV mode more exciting and fun, while Frontier should mainly focus on park building features, new species, new AI system, and such (but could still add the POV Survival Mode option while doing so).