There's no way games could ever, ever look that good and be profitable. That's taking into account that it feels like a fully fleshed out game, labor hours, and still trying to hit the standard price points.... or maybe $120 video games could become the norm. /shrug
Edit: and same dumb AI from 1999 (God I hope not though, not dx12's problem)
ok, lets get this out of the way first.
4k or 8k textures are pointless in nearly all situations.
here, let me make some examples.
almost nobody licks walls in games unless they are trying to find bad textures.
lets go with a 4k monitor. 4kx4k comes out to 4096x4096 or 16777216 pixels home 4k is 3840x2160 8294400
in other words, you would need more than 4 4k displays to see a 4k texture in its entirety before you would see pixels... even at 4k a 4k texture is largely overkill outside of cinematics but even then, only full screen close ups would even remotely call for that, and most of the time you would go full screen closeup on something, DOF would be blurring the close stuff and focussing on a character.
take a look at skyrim. just because you got the hd texture pack or the 4k mods, doesn't mean the game looks better than properly done texture mods within the confines of the original texture sizes.
hell, i personally believe that current 4k is a waste of processing power when it comes to games because all its doing is giving you a ubersampling AA without the downscaling. hell, look at it this way, would i rather have 1080p and not have to scale, saving on processing power and getting to 120+fps, or would i rather waste all that processing power on AA?
i'm personally not getting a 4k monitor till they make one at 48 inches, weather i have to use a tv or not is a different story, but i dont want to scale anything and lose what i advantage 4k would give me in terms of productivity.
i just looked at the video... wow... so much depth of field obscuring the detail... yea that was worth spending all that processing power on... i can go on but i think i would just be saying redundant things at that point.