I want supernatural to end with an emotional twist, but not in one episode, but in a way of building the end. Everything starts normal with sam, dean, jack and cas hunting some supernatural creature whem things go horribly wrong. Cas and jack go seperate ways where they end up dying some cruel way, and sam and dean get the videotape. Of course, dean jumps to go save them even tho he knows they are beyond saving, but he doesnt think rationally, so they end up going there where sam is killed the same way, and everything around dean just gets black. Thats where we see he is still in hell, from season three, and there comes lucifer explaining how all this was an illusion to trick him, how cas and jack never existed, how sam has been dead for ten years, and the shot ends with dean screaming in pain, while lucifer just laughs at him.
Still think this would've been better....