No, I didn't see anything important (I don't think...or I didn't notice, if I did). I saw the spoilers warning and decided to risk it. A few random shots of scenes I know I haven't seen yet, but nothing finale-ruining. *grin* Mostly I'm just giggling and going "Oh, there's a ep where Dean wears a huge belt of ammo across his shoulder like a bandoleer? Is that the episode that aired on my birthday or something, because yay!"