Yes, in some fanfics Baelish might recognize Arya. Fanfic writers often play with different plotlines and character interactions. They could create scenarios where Baelish, with his cunning nature, figures out Arya's true identity. It could be due to her unique skills or some small giveaway that he picks up on.
One possible scenario is that Arya shows a particular skill, like her unique way of handling a blade. Baelish, being a shrewd observer, notices this and starts to suspect that she is Arya Stark. Another scenario could be that Arya makes a comment or reference that only a Stark would know, and Baelish, with his knowledge of the Starks, realizes her identity.
Arya's character could become more confident and self - assured. After killing the Night King, she might see herself as a true hero and a force to be reckoned with. This new - found confidence could change the way she interacts with others, making her more assertive in her opinions and actions.
There would be chaos. Joffrey is a king, so his death would create a power vacuum. His mother Cersei would be furious and would likely start a manhunt for Arya. The Lannisters might declare war on Arya's family or allies. The political landscape would be completely disrupted as different factions would try to take advantage of the situation.
Sansa Stark is a great choice. Their relationship in the original series was complex, and in fanfiction, it can be further explored in different ways, like a more positive or equal partnership.
In the fanfic, Arya might kill Joffrey during a big event. She could blend in with the chaos. Since she has great agility and combat skills, she could quickly approach Joffrey while everyone is distracted. For example, during a tournament or a grand feast. She could jump from a balcony or some hidden place, stab him swiftly, and then disappear into the crowd before anyone realizes what has happened.
Arya's character development might be shown in her post - kill actions. After killing Walder, she doesn't just run away. Instead, she takes control of the situation. Maybe she installs a more loyal or just leader in his place. This shows that she is not just out for revenge but also has an idea of how to restore order in the places that have been wronged by the likes of Walder. It also shows that she has matured from a simple seeker of vengeance to a more complex figure with a sense of leadership and justice.
One popular Baelish and Sansa fanfic could be 'The Manipulation of Shadows'. In this fanfic, it delves deep into the complex relationship between Baelish and Sansa. It shows how Baelish's schemes and Sansa's growth as a character interact. Another might be 'Sansa's Perilous Path with Baelish' which focuses on the danger Sansa is in while being around Baelish and how she tries to outwit him at every turn. There's also 'Baelish and Sansa: A Web of Deceit' that explores the lies and half - truths that Baelish weaves around Sansa and how she gradually starts to see through them.
They are an interesting pair because Baelish is a master manipulator and Sansa is a young woman learning the ways of the world. In fanfics, their relationship can be explored in many ways. Baelish has his own motives and Sansa has her own goals. For example, Baelish may try to use Sansa for his political gain, while Sansa might be trying to use Baelish to gain power herself in some fanfic scenarios. It creates a lot of tension and drama.
One common theme could be power struggles. Since both characters are often involved in political and power - related scenarios in the original context.