User blog comment:Iamjaye19/Season 14 prediction/@comment-79.115.69.159-20180430092401

I think that Castiel and the angels will somehow release Earth1 Michael from the cage and bind him to chains similar to what Crowley did to Lucifer because they want his power to keep Heaven running. But things will not go how they will expected and he would be let loose in the World in his curent madman state. It is a confirmed that Michael wil be in the last episode