Question about NewGame+ (Minor spoilers

[Xenoguner]

Hey there, i got a question about the newgame+.

Spoiler!

I got the bad ending where Viv sacrifices herself to seal away the seed again and storywise shes no longer around, yet when i continue the game, shes still around, for obvious purposes. So my question is, if i got the good ending where me and her get kicked out of the guardians after we save them, how's the end game like? can we start a new game with ALL items previously held, or will Viv still be there to select as a partner, or what? Pls help me out I wanna save time by only hopefully playing one playthrough, but if the endgame is the same, that would help alot.