I never really understood the draw of New Game+
But I suppose if you want to start over but "keep your perks" Just start a new game or an early save, and use the console to give yourself xp.
sorry didn't see "ps4 version".
No chance at all. Mods though will allow you to rebuild your character when starting a new game.
NG+ plus was something I could never see in a Bethesda game. In a Souls game? Yeah. The Witcher? Sure. But in a Bethesda RPG? I just can't imagine it.