See this is what I dont agree with..I think alot of people have been left confused due to the wording used in that leak aswell..
It's pretty simple, on one hand you'll have people with the PS4K and on the other hand you will have the old PS4 users that can barely run games that the PS4K offers.
As far as I can tell, what makes more logical sense is this :
You will have THE SAME GAME on both these consoles...But on PS4K it will have up scaled textures to match the resolution. No one is actually going to miss out on features. Its going to be more like if you have a HD screen, you will enjoy HD content, if you have a 4K screen you will have an option to enjoy content on that to max aswell.
People having the option is not a bad thing. No developer is going to ditch PS4, a console which has sold over 35 million.
The other point is pretty straight forward too, if the console is going to go for 4k rendering natively on all games then I highly doubt it's going to be cheap. I don't think even the 980Ti can render some new stuff at 4k without some hitches here and there and that's a $600+ graphics card.
See there are two things 1) Game engines and technology to render 4K stuff has not matured, optimized nor has been explored enough to know how much content can be pushed...this will of course get better with time...
2) Discrete gfx cards and a closed environment of a console are slightly different in this case, even if they have similar architecture
- While a gfx card in a pc has to deal with windows memory management, background apps, etc ..a console's gfx card might not have to..
I think there are too many unknown factors to make a judgement on..I would rather wait and see what sony does and how they supports publishers.