Remember that teaser video from last week?
There is now a new teaser video out of the same scene but then from Sam's point of view.
You can watch the video at
agt_spooky 's LJ
http://agt-spooky.livejournal.com/370362.html (it's not a YouTube video so I don't know how to embed it myself).
At Eclipse Magazine it says/said (the Eclipse website is down at the moment): "According to the publicist for Supernatural all will be revealed on The CW on Thursday 10/23, immediately following the 9 p.m. (ET/PT) broadcast of next week’s Supernatural episode. The publicist also says, rather cagily, that in the meantime fans and viewers can rest assured that this surprise is going to be something unexpected that the fans/viewers are going to LOVE! "
A surprise after next week's episode? I have no idea what Kripke is up to, but I'm intrigued.