This is my friend's theory, his name is pankaj00, all the negative comments go to him:
Now that Naruto has opened the seal, that means he has opened Minato's seal too (as some of his chakra was sealed in naruto). And when Kabuto gets to know this, he will revive minato. then there will be a fight between minato and naruto, showing that Naruto has surpassed the greatest shinobi.
Now that Naruto has opened the seal, that means he has opened Minato's seal too (as some of his chakra was sealed in naruto). And when Kabuto gets to know this, he will revive minato. then there will be a fight between minato and naruto, showing that Naruto has surpassed the greatest shinobi.