Quixel is a company that sells “megascans”, the enormous textures that are used in photogrammetry, which is the way games like Battlefront are able to achieve almost photo-realistic visuals. That’s amazing work for the present, but the future is obviously going to look even better.
Rebirth is a short film made by Quixel designed to show off what can be achieved with megascans. It’s “a real-time cinematic” running in Unreal Engine 4, and while it’s just an animation and not something playable, it is using technology (both photogrammetry and UE4) that games today are using, so playing something looking like this might not be that far off into the future.
If you think the landscape looks like Iceland, that’s because it is, in a roundabout kinda way. The natural environment here is comprised of megascans of actual Icelandic terrain.