The threat on the liars has not ended yet as "A" is still alive, according to Tammin Sursok. The actress who plays the role of Jenna Marshall on "Pretty Little Liars" answered some of the burning questions in relation to "A".

In a recent interview with The Daily Edition, Tammin confessed that the season 5 of the hit suspense series will be the wildest yet starting with Shana posing as "A" in the first episode entitled "EscApe From New York." Shana was killed by Aria. However, the actress revealed that just when the liars thought that their problem is solved, they will learn that Shana is a fake.

The actress also hinted that "then someone has a twin sister." This confirmed the floating rumors for quite sometime about the twin theory. It was speculated that Jason DiLaurentis has a twin sister, although not identical. Jason is the love child of the late Mrs. DiLaurentis and Mr. Hastings, and has a fraternal twin sister.

This revelation prompted that the woman in "black veil" that attended Detective Wilden's funeral is Jason's twin sister. "Pretty Little Liars" creator Marlene King also confirmed that this character will be the main antagonist in Season 5. She also has connections to the "A team," and is rumored to be the one that killed Mrs. DiLaurentis in the Season 4 finale "A is for Answers."

Meanwhile, "Pretty Little Liars' Ravenswood" will conclude the series but will have crossover episodes with its mother series. According to TV Line, there will be a Ravenswood-centric episode in the works for "Pretty Little Liars" season 5. However, the details were still undisclosed.

"I stay in touch with all of those people, both the kids and the adults. They know we'd love to - I don't want to say 'tie up' the story - but at least give it some closure. More than we were allowed to, anyway. We were heading somewhere with that story and we want to let the fans know where that was," show creator Marlene King said.

Pretty Little Liars airs every Tuesday at 8 p.m. ET on ABC Family.