So there is this article/post which reports of Jensen saying at a convention that his reaction to reading the season finale scripts was the following:
Well, let me say this. I got to the last script, and just went ‘Oh. Wow. Oh wow. They went there.’ And that’s not something I often say.
No worries, I’m not gonna start with reviews of SPN episodes. This is just something I noticed and had to write down.
Reposted from my Tumblr.
At the end of the episode, there is a song played: “The Sun Ain’t Gonna Shine Anymore”. It starts with these lyrics: