Nina expressed her decision whether or not she will be a part of "The Vampire Diaries" Season 8 by posting a cryptic photo via Instagram. On the bright side, Nathalie Kelley joins the cast plus, The CW has released the official plot summary of the premiere episode.

Nina Dobrev mysteriously announced that she is not going to reprise her role in "The Vampire Diaries" Season 8. According to Celebrity Dirty Laundry, the former lead actress declined to be a part of the upcoming season.

 I ❤️Happy Endings

A photo posted by Nina Dobrev (@ninadobrev) on Oct 14, 2016 at 9:24pm PDT

The same source also learned that Dobrev plans to move into big screen  and become a huge Hollywood star.

Other than that, Nathalie Kelley has been cast to be the newest villain of the series finale. iTech Post reported that the 31-year old Peruvian-Australian actress will play the role of Sybil.

Sybil is an evil lady who lures her victims for her personal amusement.

As for the official plot synopsis of "The Vampire Diaries" Season 8 premiere episode, Vampire Diaries notes, "Months after Damon (Ian Somerhalder) and Enzo (Michael Malarkey) mysteriously vanished from the Armory vault, Stefan (Paul Wesley) pushes forward with their search, while Bonnie (Kat Graham) struggles to hold onto hope that they will be found.

Meanwhile, a dangerous encounter with an unexpected visitor leaves Caroline (Candice King) and Alaric (Matt Davis) fearing that someone - or something may be targeting their family. Stefan realizes that whatever has a hold of his brother may have a more damaging grip over him."

"The Vampire Diaries" Season 8 episode 1 is titled as "Hello Brother". The upcoming episode is scheduled to air on Friday, October 21, 2016, at 8:00 p.m. ET first and exclusive on The CW.