You know, ever since Lionhead cancelled B.C.
https://youtu.be/eCzLbJxp1V8?t=12s
I have really really wanted a game set in prehistoric times with dinosaurs/cavemen.
Where you have a character you control and atribe under your leadership and you go through the ages following them to survive and grow the tribe. Where like your character will eventually pass and you take on playing as another member of the tribe who becomes the leader.
Think of like State of Decay style bases/building with characters that you actually get to know/have personalities and stories along with the dinosaurs and action.
Having ot hunt/forage for food, fight off predators, find shelters, discover new tools and technology as your progress further and further on.
I hope this game is even close to a hint of that, hopefully it's not simply another UBisoft "open world" by-the-books formula a la AC/Far Cry, where they focus so much on "padding" out the world with a bunch of USELESS crap all over the map instead of actually having good sidequest and interesting things to discover.