Yeah, absolutely no way there will be another Juubi Jinchuuriki as long as they can help it because Naruto will simply separate it back into the Tailed Beasts. If you think post-shinobi world war the Bijuu would be friends of the shinobi and their disappearance would definitely not go unnoticed. Anyone who'd try to make that happen even after Naruto's death would definitely fail. This is thinking about the generation after Naruto's death. Anything after that is unpredictable, though it is for sure that people would think of all this right now as some sort of legend, like what happened with Hashirama. Heck, there may even be Narutatheists.