But the fact stands that if we believe his words, then Eileen was brought back for the final season to be a prop piece for Sam. And we're not about that life, especially with the history of fridging that Supernatural has had when it comes to their female characters. Sam and Eileen got married. Dean approved.
This time it wasn't a dead Dean becoming Demon Dean like he did to close out season nine. Instead, he finally fulfilled a destiny first visited in seasons four and five of the series. He became the meat suit for the Archangel Michael…with a twist, of course.