"Teen Wolf" season 6 was full of surprises, and the new promo of episode 6 promises even more shockers from the supernatural drama. The latest spoiler shows Lydia's unexpected trip through a mysterious portal which brings her to a different world.

According to Teen Vogue, the latest teaser for the next episode, which will air January 17, is creepy.  It shows Holland Roden's character, Lydia, looking at her reflection into a mirror, when suddenly, a strange-looking woman starts to gaze back at her.  When Lydia touched the mirror, that's when she was transported to a different world, which looks like it's from the past.

The woman in the mirror appears to be on one of the streets, who seemed to be walking away from Lydia and heads towards the end of the street where people looked like they were partying.  The sneak peek of the next season is unclear whether that was just a dream or if it really did happen.

Meanwhile, it has been reported that Dylan O'Brien, who plays Will Stiles, won't be coming back for season 6b.  Hollywood Take reported that rumors started when the show's costume supervisor, Daniel Flores, posted a picture in Instgram with the caption: "Work finish on this guy right here. Thanks for all the memories and a wonderful 6 season run."

Fans right away demanded for Flores to explain the picture, and he clarified that he was just referring to the end of the actor's season 6a filming. But of course, the damage has already been done, and now fans are worried that O'Brien won't be part of "Teen Wolf" Season 6B. 

O'Brien sustained a serious injury while filming "Maze Runner: The Death Cure," and some say that it could be the reason he won't be coming back to "Teen Wolf."  However, some say that the TV series simply cannot be without the "True Alpha's" best friend. Fans would have to wait until next year to find out.