It's definitely not leaps ahead of the first game, in fact in terms of rendering techniques used there are very obvious signs it is working on the PS4 framework
And again, nothing wrong with that. Like on one hand this community bitches about layoffs and developers being closed, and wants games better scoped and doesn't want the relentless focus on new tech when the existing tech hasn't even been properly utilized; and on the other, when a game does those exact things, we end up with ya'all (not you, to be clear) bitching and whining.
Make up your minds (still not you).