"Vampire Diaries" season 5 returns next month, and new spoilers reveal that Katherine may die in the 100th episode of "The Vampire Diaries." Or will the CW series take a huge twist and let Katherine once again be the survivor of the story in season 5?

In the promo trailer for "The Vampire Diaries" season 5, episode 11, titled "500 Days of Solitude," Katherine is shown bed ridden after suffering from a heart attack and falling down the stairs. Though Katherine often finds herself in dire situations, this one looks especially bad: the promo trailer alludes to her failing health, and Damon, Jeremy, Elena, Caroline and Bonnie all make their toasts to the memory of Katherine, Latin Times reports.

Though new spoilers reveal that a death is coming, executive producer Julie Plec didn't specify for who, or if the death would actually happen in "The Vampire Diaries" season 5, episode 11.

"Death is knocking at the window in the 100th episode, but I'm not going to say if death is successful or with whom," Plec said.

She also teased "a nice, big, juicy cry and a nice, big, juicy shocker," Wetpaint reports.

One thing we know for sure from spoilers: this episode will be all about Katherine.

Ian Somerhalder, who plays Damon on "The Vampire Diaries," said, "We learn a lot about Katherine, which has been a very intense part of the story. Stefan, Damon, and Elena all have a very different way they want to deal with her. Damon just wants her dead as a doornail, so it's interesting."

Candice Accola (Caroline) added about the 100th episode in season 5: "I'm excited for the fans to experience just how much the writers wanted to give back to them in this 100th episode... I think they're going to be thrilled with this episode."

And Nina Dobrev (Elena) just giggled, saying, "I'm laughing at you that you think I can describe it in one word. And, when you watch it, you'll know why I said that."

"The Vampire Diaries" season 5 returns January 23, 2014 on the CW.