So, I would like for Mary to be rescued and come back before Cas does. Why? Because I think that it’ll best showcase Dean’s feelings. We will get to see the difference in reactions, emotions, and change in attitude much better. Mary is his mother, of course that’s going to boost his morale. But he lost her when he was a child and got her last season and then all the drama happened and they really didn’t bond that much.
But Cas? He has been with Cas for NINE YEARS. As an adult. His memories of Cas are fresher and stronger. They have shared loses and pain and disappointments, betrayal, lies, truths, a love that made them each risk their lives for te other- in one word- LOVE. Romantic love.
So I want Cas to come back after Mary. Just to once and for all cement Dean’s feelings. Though the way he’s grieving for Cas- because let’s face it- I have never seen Dean as desolated as when he had to prepare Cas’s body and then light up the pyre to burn him.
PS: Id you haven’t seen the first episode of The Flash this season, I recommend that you do. Because Iris and Dean are both grieving their special person is such a similar way that even my husband agreed with me.