The video creators shows the game engine of CryTek 2 combined with renderings from Enodo
Here's some renderings from Enodo projects which hint at what a next gen simulator might look like.
Bryant Park rendering, NYC: Example of daytime lighting, fauna, shadows, sims and graphics
NYC Public Library: mid to high poly models
Bellagio, Las Vegas: example of textures and realism
La Defense, Paris: example of night lighting and traffic UI
If a urban simulation game were to be created similar to this players would need to a powerful graphics card to run it and a very good computer. But with computers getting more and more advanced and can handle more graphic intensive gaming. We'll wait and see or build our own ;)
More next time