As soon as you see Infamous: Second Son in action, the differences between current and next gen capabilities become absolutely clear. For one, a recent trailer showed how destructible elements of the environment not only look amazing to blow up, but can be a tool to dispatch hostile enemy forces.
In our close up look at the game at E3, we saw the game's protagonist Deslin Rowe using his powers to combat his DUP foes. He could teleport short distances in a puff of smoke, shoot fireballs from his hands, hover with jetstreams shooting from his palms, and charge up a fireballs that can destroy structures in the environment. Soldiers firing their guns from an elevated walkway can be easily dispatched by literally destroying the bridge they stand on. Not even the guard towers stood a chance against Deslin's explosive blast, as it vaporized in one shot.