One thing I've noticed keeps coming up again and again in reviews and interviews is how 'unique' the NG+ is. Maybe that's not the right word, but all I keep hearing about it is how seamlessly it fits in and "makes sense within the logic of the game's universe". All that makes me think of as to what that means is "This is gonna be timeloop bullshit, isn't it?"
At the end of the main quest you'll go to the magical space temple at the center of the universe, jump into the space goo, and warp back in time to the start of the game with all your equipment and skills. There'll probably be a lot of airy-fairy, pseudo-philosophical nonsense about how "we're all one with the universe, man."
I haven't paid extra for early access so I'm not gonna find out until at least Thursday, but I'm just posting this for posterity now because I wanna see how close my guess was.