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It's the season 12 finale! Here's what we know. Now with sneak peek
We are getting two back to back episodes to end the season, but they are not a two part finale.
 Here are the official press releases

Episode 22

"Who We Are" - (8:00-9:00 p.m. ET)

FAMILY - Caught in a dangerous situation, Sam (Jared Padalecki) and Dean (Jensen Ackles) only have each other to rely on. Meanwhile, the fight between the American Hunters and the British Hunters comes to a head. John Showalter directed the episode written by Robert Berens (#1222). Original airdate 5/18/2017.


Episode 23

"All Along the Watchtower" - (9:00-10:00 p.m. ET)
EPIC SEASON FINALE - Lucifer (Mark Pellegrino) battles Sam (Jared Padalecki), Dean (Jensen Ackles) and Castiel (Misha Collins) for control of his unborn child. Robert Singer directed the episode written by Andrew Dabb (#1223). Original airdate 5/18/2017.


The official trailer



The Shaving People, Punting Things promo



 And the screen grab stills from that promo




The Sneak Peek



 The promotional pictures

“We’re wrapping a lot of things up and certain plot lines will be ended this season — some forever and some temporarily — but also, that allows us to build up steam going into season 13,” Dabb says. “Coming out of the finale, people will have a pretty good idea of where things are going.”
“There are some things that happen that impact strongly and directly on the boys, while at the same time, we are starting a new chapter in the show, [though] not in a way of erasing what’s come before,” Dabb says. “I think it’s something that will be a natural progression of what we’ve done but also cool and different and hopefully give us a lot of energy going into season 13.”
a. “Finales, by definition, can’t go too crazy,” Dabb says. “But I will say this: It’s by far the most meta finale we’ve ever done. There are some twists coming that we’ve never done before.”
 Tidbits from around the web
From Buddy TV Ruth Connell said at Ottawa Comic Con

"I feel like the end of the season is going to ruffle quite a few feathers in the fandom," Connell said at last weekend's Ottawa Comiccon. "I'm going to say that I don't think things are going to get easier, let's put it that way."
From supernatural-season-12-spoiler-sheet

Ruth Connell did NOT film on this episode, as far as we know.
Andrew Dabb says this the “most meta finale” the show has ever done and some twists are coming that they’ve never done before.
We may see some wings.

When it comes to protecting Lucifer’s baby — a decision Castiel recently made — Collins claims that Castiel truly believes he’s making the right choice, though the actor admits the angel is “really playing with fire” this time. Furthermore, Collins says, “There are going to be some fairly epic consequences in the season finale.”

And let’s not forget, Castiel still supposedly has to suffer some epic consequences from killing Billie earlier in the season, a decision Collins says will fold back into the finale. “As far as season finales go, this one’s going to be one of the more emotionally taxing and traumatic that we’ve had in a long time,” he says.

The season comes to an end, and it looks like an exciting two episodes. We should be getting closure on both the BMOL story and the Lucifer's child story. Jody returns for episode 22 (Please don't die!) Mary is tied up. Dean is about to be injected by Toni?  (There had better be a really good reason). The mysterious Ms. Hess puts in an appearance. Ketch returns to the bunker.
For the actual finale, Kelly returns and apparently gives birth. She seems to be close to Cas and Mary seems to be helping her through labor as well.
 What do you think about everything we know about these episodes? Are you excited to see Jody help Sam and Dean? (Please don't die!) Do you think Mary will be unbrainwashed? Are you glad Sam and Dean will work with Toni? Let us know in the comments or in the discussion thread fo episodes 22 and 23.