I'd like to see dinosaurs grazing, laying around, yawning, itching themselves, grooming, socialising, enjoying a scrubdown, enduring their exuberant dinosaurlings. Preferably without roaring or posing. Y'know, generally being animals rather than monsters, which I think the last two films (particularly JP3) have forgotten.
But yeah, watching an inter-dinosaur hunt would be cool. Maybe even a failed one, which is another unadapted element from the second book.