Although 'Pretty Little Liars' Season 6 summer finale provided answers to a lot of viewers' queries and also revealed the real identity of "A," many fans of the teen drama mystery-thriller television series are unhappy to accept CeCe as the transgender "A," who is responsible for ruining the lives of Aria, Alison, Emily, Spencer and Hanna without any reason.

A report in IB Times states that the mystery does not end with the revelation of "A's" identity, as the fans are yet to know who killed Mrs. DiLaurentis. Meanwhile, show creator Marlene King has teased the killer of Jessica DiLaurentis as a part of a big mystery and it will hunt the girls as they try to forget their traumatic past.

Talking to MTV, King said, "You will find out who killed Mrs D and that's a part of the larger mystery that we have to tell."

'Pretty Little Liars' executive producer further teased that "A's" story is over, but another big bad will be coming in Season 6B to ruin the lives of the girls, who possibly will be much more dangerous compared to Charles.

"This 'A' story is done. There is a new big bad, but this A, Charlotte, is done. There is a new Big Bad," King shared.

In the meantime, ABC Family has released the trailer of the 'Pretty Little Liars' Season 6 winter premiere, which jumps five years forward and shows that the girls have returned to Rosewood to celebrate their reunion.

In the video clip, an elated Spencer is seen saying "I miss your faces!" to her friends. Meanwhile, Alison is married and is working as a high school teacher. In addition, she is also trying to start a relationship with her sister Charlotte aka CeCe.

The teaser turns frightening when Mona reappears and asks Spencer whether she still has nightmares and Emily appears terrifying in a graveyard.

It seems that horror will be back in Rosewood following the reunion of the girl and this time they have to deal with a much more treacherous psychopath than Charles.

After an unsatisfactory "A" reveal, it will be interesting to watch 'Pretty Little Liars' Season 6 winter premiere.