I almost got a bit teary when Dean and Bobby saw each other! It really was an amazing and emotional episode. Yeah I'm glad they brought Kevin in one last time; it was a much more fitting way to say goodbye to him than when we last saw him. I think it was clear that God really stepped back from any meddling with Earth/Heaven/etc even in the case of the Apocalypse... that he was "done" with being God and just wanted to let everything happen naturally. He helped the Winchesters along a little but didn't want to interfere more than that. That became his philosophy that he's followed for thousands of years.

The season finale got mixed reviews, and a lot of people definitely share your feelings on it. I can see how it could be considered a let-down, but I actually found it really refreshing! My take is that... the whole season, Amara was shown as more misunderstood than evil so I was glad they didn't kill her in the end and there was time for her to explain where she was coming from. In the end it was family that won the day, and family has been at the heart of Supernatural since day 1. They don't always have to kill the "big bad" to wrap up the story. And I'm glad they're scaling it back with the Men of Letters chapter being the next main storyline. I've always wondered how they'd top bringing God into the mix but they showed that they don't have to keep topping themselves every year. I didn't really think of Sam getting shot as a cliffhanger as much as a way of introducing this new MoL chapter as no-nonsense. I'm completely confident Sam wasn't shot dead since they made a huge point of telling the audience that a Winchester death from now on is really the end (through the introduction of Billie).

I agree about Lucifer, though I'm not sure how viable it would be to have Mark Pellegrino or Misha back as Lucifer storyline-wise as much as I'd like to see them play Lucifer again (they need a "live" vessel for Lucifer so Mark wouldn't work, and they need Cas to be Cas again too so Misha wouldn't work). It'll be definitely be weird seeing him in a completely new body and I can't imagine anyone can top what we've already seen. I hope he has a purpose too and isn't just in the show for the sake of having Lucifer as a character... hopefully they don't waste his character!

That line was great. I watched the gag reels shown at SDCC this year and Jensen kept tripping over that one line with hilarious consequences