4B Spoilers

Please note - not all of these spoilers are confirmed. (all credit goes to @pll_spoilers_ on Instagram)

• Mona will have scenes with Ezra in his apartment.
• Spencer will try to shut down Radley.
• Cece has a twin.
• Aria finds out about Ezra on a ski lift (and she might not be able to escape him < don't know if this bit is true).
• 4x19 is a black and white episode and mainly revolves around Spoby although there might be one Ezria scene.
• Alison shouldn't trust her family.
• There is a big reason that Ali couldn't reach out to her family for help.
• Beach hottie & Board shorts are the same person.
• We will find out what happened to Toby's mom in 4B.
• A drives Shana out of Rosewood in 4x18.
• Near the end of the season, Toby makes a trip to London to speak with Melissa about Spencer.
• Paige will write an anonymous letter to the police telling them that Alison is alive, causing them to re-open the case and start to question the liars. Emily will never forgive her for this.
• 4x18 ends with Alison in tears.
• We will find out who Ali is so afraid of in 4B.
• There is an Ezria sex scene in a cabin in 4x14.
• Ashley Marin already knew/knows that Alison is alive.
• There is an intense Paily love scene in 4x19.
• There is a significant reason Cece was wearing a similar top to Ali the night she disappeared. 
• Spencer has a secret that drives a wedge between her and Toby in 4x21. 
• The liars and Ali will work together to find out who A is.
• Spencer has a secret and it's the reason she wasn't in the barn when the girls woke up to find Ali missing.
• Spencer moves in with Toby in his loft but not for very long.
• In 4x21, Aria is very 'restrained'. Lucy lost her voice for screaming and crying so much when filming. 
• Ella returns from Austria in 4x16.
• Emily's dad has a heart condition.
• Emily tries to stab her dad.
• Aria will be A's main target in 4B.
• We will see Ezra in Hanna's room in 4x15.
• Alison will be found and almost killed around 4x15/4x16.
• Ali might not stay alive.
• Paige and Mona will find out that Ali is alive in 4B.
• The girls get trapped in Spencer's lake house in 4x15, they break a window in an attempt to get out.
• Mona bought Jenna's mustang.
• We will learn about Ezra's motives in 4B. The writers said we will 'kick ourselves for not guessing it beforehand'.
• Noel returns in a big way in the finale. He will play a big part in the storyline of season 5.
• Ali and Mona might have a confrontation in 4B.
• Jason returns although we'll only see him in 4x23 and the finale.
• Ezra and Aria will still have scenes together after she finds out. Ezra has been deceitful for years. Ezria will not stay together. Aria won't be in denial about Ezra's A status.
• There will be a twin reference in 4B. It WON'T be Alison.
• Caleb's last appearance in Rosewood will be 4x14, in 4x15 Hanna tells her friends that she and Caleb broke up.
• Melissa returns in the season finale and her actions set everything up for season 5. 
• Someone will die in the season finale.
• Jessica DiLaurentis was with Ali that night.
• There will be a rooftop scene with Ali and Ezra, one of them may jump/be pushed/fall off.
• Hanna accuses Caleb of being in love with Miranda.
• Ashley Marin will work for Jessica DiLaurentis.
• SPOILER QUOTE: Oh my God, we gave Ali to A.
• Aria and Ezra at at a cabin which belongs to one of his friends in Europe. Aria is looking out of the window while Ezra is on the bed, he notices that the rug has moved to show a lock to the basement. He is scared Aria will see it.
• Ezra tells Aria he wants to have a relationship with her again but only after she graduates.
• The winter premiere is set the same night the girls found out Ali is alive. We will see their initial reactions.
• There will be an Ezra/Ali flashback at a bar/diner.
• Spencer will be the first to figure out Ezra is A but she keeps quiet about it for a couple of episodes.
• In 4x15, Emily is asleep with the diary on her bed. Alison appears at the window and Emily wakes up, they have a conversation about who is after her. Ali notices Emily still wears her friendship bracelet. 
• In 4x15, Love ShAck Baby, Emily gets a note from Ali saying 'I want to come home. Meet me at our spot'.
• Hanna and Spencer have trouble trusting Alison. Aria isn't thrilled that she is alive. Emily is still confused about her feelings towards her.
• Ezra will have a secret meeting with Aria and Mona in the winter premiere. 
• Jake sees a scary side to Ezra and warns Aria to be careful.
• Big A is a girl.
• There will be a bromance between Mike and Ezra.
• Mike has a romance with Mona.
• Mike will stop taking his problems out on the people he loves. He will try to be a better brother to Aria.
• Mona does not know that Ezra is A. The only person that knows is Cece.
• Cece returns in 4B. She is connected to Garrett, Wilden and Jenna. She becomes a 'master puppeteer'.
• Aria might break down like Spencer did when she finds out about Ezra.
• Jake and Aria break up in 4x16, Close Encounters.
• Mrs DiLaurentis will have the bones in Ali's grave tested late on in the season to see whose body it really was. The true identity won't be revealed until season 5.
• Emily opens up to Paige about her feelings for Alison.
• Ezra is A but he isn't the ultimate head A.
• Spencer will start taking pills to do better in school.
• Jason is in rehab, not re-modelling his Grandma's house.
• We will find out who Board shorts is in 4x19.
• We will find out who pushed Ian off the bell tower in the finale.
• Some stories in Ali's diary are about the girls, but others are not. The girls take turns to have/read the diary in an attempt to work out which are about each person. One is about the Busy Bee Inn, which is somewhere Aria and Ali used to go but it has shut down. She thinks Ali is hiding there. Ezra overhears her telling her friends.
• Hanna and Travis kiss.
• Hanna might start seeing someone new, Riley, who is an indie musician.
• Spencer has a huge secret that she has been hiding since around the time they met Alison.
• Mike is Mona's new love interest but her motives are very questionable.
• Hanna searches for new girls that could be in Alison's grave. She finds someone and contacts her old friends but realises she couldn't be in the grave because she was seen after Labour day. Claire (the girl's friend) talks to Hanna and Emily and tells them how much of a horrible person her friend was.
• The woman in black/black veil will start popping up in places. We should keep her in mind throughout 4B. She is where all of this is heading.
• Toby finds proof that his Mom did not commit suicide, it all leads back to Radley (which may not stay open).
• None of the couples will be on good terms at the end of the season.
• Spencer makes a deal with her dad about Jason.
• Aria freaks out on Maggie in 4x17.
• We will learn why redcoat was buying so many black hoodies.
• Mike and Hanna have a secret past together.

pretty little liars returns on Tuesday, January 7 at 8pm on ABC family