We've already talked quite a bit about why Mona isn't "A.D." like the recent episodes suggest. If you believe this, it means Mona is the biggest adversary of "A.D." at this moment. She has so much evidence that "A.D." would want. She's gaming the final game. She seems to be one step ahead of the girls, which could mean one thing: she'll figure everything out first, and it'll be up to her to put a stop to everything. This might mean that Mona makes the ultimate sacrifice: herself. (For the record, the prevalent theory is that it's Mona saying those fateful words that King tweeted.)
