WhenPretty Little Liars returns, the series will jump forward five years. We already know a few tidbits about what the girls will be up to, but what about their sometimes ally/sometimes enemy Mona (Janel Parrish)?

"She, too, is forced back to Rosewood and has a new mystery to face that kind of bonds the five of them together again, whether they want to be or not," Parrish tells TVGuide.com on the set of the series.

The Pretty Little Liars cast plays "A or bae?"

Though Mona might look more conservative after the time-jump, Parrish says she's still the same old Mona. "She still kind of shows up where you don't expect her to show up and says a couple things that kind of make you curious about what her true intentions are," Parish says. "But I think that will always be a part of Mona no matter what, and I think that's something that makes her character really fun."

Find out more about Mona's future in the video above.

Pretty Little Liars returns Tuesday, January 12 at 8/7c on Freeform.