'Pretty Little Liars' season 7 air date, plot spoilers: 2 weddings and more A.D. minions? Are Spencer and Bethany sisters?

The summer finale of "Pretty Little Liars" season 7A fielded more questions than answers, and fans are hoping that season 7B, which is coming out April 2017 will finally provide answers and closure to several loose ends. Incidentally, season 7B marks the last half of the entire series, which is ending after seven years.

In the summer finale, it was laid bare that Jenna Marshall (Tammin Sursok) and Noel Khan (Brant Daugherty) were in cahoots to uncover some secrets, possibly for A.D., while tormenting the Liars on the side. In fact, Jenna shot Spencer (Troian Bellisario) in the chest, and whether the latter lives through the ordeal is something fans will see when the show returns.

The finale also saw Jenna waking up in the back of a van, after which she asks if the one driving was A.D. She obviously knows that A.D. exists, but she doesn't know who he/she really is, something that showrunner I. Marlene King confirmed in an interview with TV Guide.

"[Jenna] knows A.D. exists and she is working anonymously for A.D., in ways [that], we will find out moving forward, a few other people on our show are as well," she said.

That means the second half of season 7 might reveal more people who may or may not realize that they are working for A.D. Melty surmises that Lucas (Brendan Robinson) and Paige (Lindsey Shaw) could be A.D.'s minions, too, which is why the latter decided to return to Rosewood and make things awkward for Emily (Shay Mitchell).

There will also be at least two weddings in the second half of season 7, which is supposedly picking up right where the summer finale ended. Fans are assuming one of the weddings will be Ezra (Ian Harding) and Aria's (Lucy Hale), but they shouldn't forget that Ezra flew to Colombia to find out if his ex Nicole is still alive. A video footage Aria saw on TV revealed that Nicole is alive and was reunited to Ezra in Colombia. What will this reunion mean for Ezra and Aria? Who else will get married? Will Hanna (Ashley Benson) and Caleb (Tyler Blackburn) tie the knot, too?

Incidentally, a fan theory circulating on Tumblr says Spencer and Bethany Young might be sisters, with both being Mary Drake's (Andrea Parker) daughters. Apparently, the fact that Jessica DiLaurentis (played by Andrea Parker, too), Alison's (Sasha Pieterse) insisted that Bethany call her "aunt" suggests that Jessica knows they are related. Moreover, it seems Alison and Bethany have the same DNA (being cousins), or else, why would the police mistakenly identify Bethany's body as Alison's?

Well, the questions will be answered and that theory tested when "Pretty Little Liars" season 7B returns on Freeform in April 2017.