About the 4k, people seriously don´t even dream about it. To move games in that beast resolution it will be almost impossible at playable rates even by the "new" PS4 hardware.
No no and no. There is no debate, no hope nothing, please guys.
Also just think with the brains as it should be...if the PS4 can make 4k just for movies...How do you think that you will be able to see 4k in a FullHD TV that does native 1080p resolution? You can´t....you´ll need a 4 k TV which you can´t even pay!
The only thing the PS4 could do in that case is what GT5 did in photomode on the PS3, you could upload UPSCALED higher resolution pictures. Which is totally different.
Also I did that the other day just to see what resolution gave me...And guess what? 3840 x 2160p Sounds familiar?
So we can upscale pictures right now on the PS3 at higher resolutions which doesn´t mean at all that the PS3 does 4k or higher than 1080p. Also this is limited by hardware (the GPU).
Now with that said, and hope you guys take off this idea off of your heads for the love of God...,Sony just uploaded tons of pictures from Killzone Shadow Fall which has nothing to do with racing but when I took a look at the resolution, guess what? Yes, again 4k resolution pictures. (and again which means nothing, but you can upscale and compress images as you could with GT5)
Here is one example:
Just stay on topic and sorry but every time I see 4k...No, okay, just no.