This trailer right here expresses exactly why the jump from current gen to next gen is large enough

[S.T.A.G.E.]

Zero999 said:

looks like a slightly better version of last gen games.

Did you just say slightly? I don't know what world you're living in bro. Nothing last gen had a shred of the emotion that was shown on these characters faces. Thats borderline photorealism. This is in-game and not pre-rendered.