One interesting plotline could be Emison dealing with family secrets that threaten their relationship. For example, Alison's family might have a dark past that she's been hiding from Emily, and when it comes out, they have to figure out how to navigate through it together.
One interesting emison story could be where they reunite after a long time apart. Maybe Alison has been away on some sort of self - discovery journey, and when she comes back, she and Emily rekindle their relationship in a really sweet and emotional way. They start by just being friends again, sharing their secrets and fears, and then gradually the romantic feelings come back.
One interesting plotline could be a love triangle between the main characters. For example, Aria might be torn between Ezra and a new mysterious guy who comes to town. This creates a lot of drama and tension as she has to decide who she truly loves.
Another way their relationship develops is through self - growth. Emily might grow more confident in her feelings for Alison, and Alison might become more empathetic towards Emily. They both learn from their past mistakes and build a relationship that is based on mutual understanding, respect, and love. For example, Alison might learn to be more honest about her feelings after seeing how much it hurt Emily when she was secretive in the past.
Well, obviously Emily and Alison are often very well - written. Writers can really explore Emily's loyalty and her strength in a relationship, especially when it comes to Alison. Alison, on the other hand, can be shown with her complex personality, her insecurities beneath her tough exterior.
A possible plotline is that Toby and Spencer get married in a secret ceremony. But then they face challenges when the truth about their marriage gets out. The other Liars might have mixed reactions, some being happy for them while others worried about how this will affect the group dynamic and their safety from the ever - lurking A.
A possible plotline is that Dean has a connection to one of the 'A' characters from his past that he doesn't remember at first. Spencer helps him dig into his past and they find out that his family has some sort of history with the chaos in Rosewood, which puts both of them in danger but also brings them closer together.
One interesting plotline could be Caleb and Hanna facing a new mystery together in a post - show fanfiction. Maybe they move to a new town and start to notice strange things happening around them, just like in the original show.
Perhaps a plot where Mona and Noel start a secret relationship and have to keep it hidden from the rest of the liars. They face challenges like jealousy from other characters and the fear of being found out, which adds a lot of drama to the story.
Well, a great plot could be that Caleb finds a strange encrypted file on his computer that seems to lead to a hidden treasure in Rosewood. As he tries to decipher it, he has to team up with some unexpected characters from the show. Maybe he also has a vision or a strange dream that leads him to believe there's something supernatural going on in the town related to the file. Also, he could get into a situation where he has to choose between his loyalty to his friends and his own personal gain from the treasure.
One idea could be exploring the backstories of the minor characters in more detail. For example, what was the life of Jenna before she became blind? Another idea is to create an alternate universe where the 'A' mystery was solved much earlier, and how the characters' lives would be different. Maybe they would all be closer friends and focus more on normal high school stuff like prom and college applications.