User blog comment:GregoriusThe2nd/How Will It End?/@comment-3045936-20141209201207

Not the best but a possible ending. The series end with Chuck revealing the whole supernatural series as books. And is just a friend of Sam and Dean in a universe without any kind of supernatural. But as Sam and Dean leave Chuck's house, Chuck is shows as God. But created another universe with Sam and Dean made into that world too.