I'm also up to 3x16 on my rewatch and LOL I don't know that I'm prepared to handle two finales in one day, even if one of them is an episode I've seen like twelve times. I'd have finished yesterday on my flight, but I kept thinking to myself, "3x12 IS THE BEST THING THAT'S EVER HAPPENED TO ME/3x13 IS THE BEST THING THAT'S EVER HAPPENED TO ME" which led to me rewatching 11x16 and 11x17 instead, which are also the best things that ever happened to me. But watching S3 and S11 in tandem has also given me these huge cravings for S6/7--splitting the difference, clearly--so this probably just means SPN is always the best thing that ever happens to me. <3
I was a little guarded about the finale, because every year I tend to forget that the way SPN does finales isn't always my personal favorite thing in the world. (EVERY YEAR. XD) But now I Remember! Which is helpful, in terms of a certain clarity re: what I may and may not expect. And after 11x22, I'm suuuuper intrigued by the form/structure, which is awesome.
11x23! 11x23! 11x23! 11x23!!!