The villain will use genjutsu on Hinata and she will see the kids then.
sorry but doesnt make much sense..even if the villain will cast genjutsu on her ,and the only things she seeing are her kids with naruto isnt that bad for ns?i mean that would mean she is still smitten with naruto,so if ns is the endgame it makes no sense to still have hinata not move on from naruto..hinata needs a closure if ns is canon not have her to continue fantasize about naruto 3 years later