There is no Cell, Xenos, or PowerPC's being used on this consoles you have a common x86 Bulldozer PC's on this consoles there no iceberg to discover or multiple SPU to learn how do they work.
You wont see the same jump on quality as the past gen.
Cell was extremely tricky to get behind, thats different with the Ps4s hardware.
But there is still a lot of potential yet to unlock.
I don't think this gen will last as long as the last one, but I think the visual progression will be equally as rapid. Just look at the first 2 years.
We already see steady progression when we look at exclusives(Killzone, Infamous, Driveclub, The Order) and bigger jumps when we look at multiplats(COD:Ghosts -> Advanced Warfare).
Others failed to improve anything(Battlefield 4 -> Hardline), but that doesn't mean that there is no room for improvement, it just means that developers choose not work on that front.
I think in 4 or 5 years we will have exclsuives on Ps4 that make Killzone Shadowfall look just as dated as Killzone 3 made Resistance 1 look.
No, we didnt. We saw better art to tech ratio/balance in exclusives.
I don't buy that.
Uncharted 3 didn't look miles better than Ucharted 1 because of better art.
Killzone 3 didn't look miles better than COD3 because of art.
And Driveclub doesn't look better than NFS Rival, Forza, PCars etc. because it has better art.
I would call these exclusives technologically impressive, not only artistically.
Bloodborne is an example for an artistically impressive game that isn't technologically impressive.
We regularly see developers squeezing more out of the hardware when making an exclusive title than when making a multiplat title.
Only very few devs manage to impress on a technological level with multiplatform releases on console. I'd count GTA V on last gen consoles here. You can see here that Rockstar spent a lot of time with the hardware to get the absolute best results.
On next gen and PC, they didn't. While looking clearly superior it doesn't exactly look like a game thats pushing modern hardware to its limits, but thats understandable since its a last gen game at the core.