Anyhoo...I have some "rare"(?) stuff from before the Pilot aired, including this little overview article from Cinefantastique magazine? I think that was the name of it.
"A first look at Superstition" Ooops! :P
At least they got it correct in the rest of the article - though they do misspell Jensen as Jenson near the beginning of the article.
Putting together a book of old #Supernatural magazine articles and came across this gem from before the Pilot aired.— ScreencappingGoddess (@spndeangirl) June 20, 2018
At least they got it correct for the rest of the article.#SPNFamily pic.twitter.com/hzohqS28DU