UPDATE 8/2: We now know which episode Red Coat will be revealed in. Find out the answer here.

We were supposed to see Red Coat "unmAsked" at the end of Pretty Little Liars Season 3, but in the end we were left wondering if Red Coat really is Alison, or just someone else in an Ali mask. When can we expect a real answer about the person in charge of it all?

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The answer is that Red Coat will definitely, 100 percent, no-doubt-about it be revealed in Season 4, something the cast and crew has said before, and showrunner Marlene King recently confirmed on Twitter.

So, is Red Coat really Alison? We certainly hope so. There's not way to know for sure until the reveal happens but given that Marlene has also confirmed we will be getting more answers about Alison's death sooner than we may think, we wouldn't be surprised if it turns out she is the person behind it all.

Who do you think Red Coat is? Sound off in the comments below!

Find more Pretty Little Liars spoilers here.

Catch the next episode of Pretty Little Liars on Tuesday, July 23, 2013 at 8 p.m. ET/PT on ABC Family.

Source: @imarleneking