As Queen of the North, Arya's character would transform significantly. Her wild and independent streak would still be there, but she'd learn to channel it in a more productive way. She'd start to understand the importance of traditions and how they can be used to unite the people. Her relationship with power would be complex. On one hand, she'd use it to protect the North, but on the other, she'd be cautious not to let it corrupt her. She'd develop a more regal presence, but still keep her roots as a Stark. Her skills as a spy and assassin would be used in more strategic ways, like uncovering plots against the North and eliminating threats without causing unnecessary chaos. And she'd have to learn to balance her personal desires with the needs of her kingdom.
Arya's character might develop in terms of her leadership skills. From being a lone wolf, she has to become a leader. She'll learn to make decisions for the greater good of Winterfell, not just for her own survival.
In a time - travel fanfic, Arya's character could develop a sense of timelessness. She has seen so much death and destruction in her own time. But by traveling through time, she might start to see the bigger picture of the cycle of life and power in Westeros. This could make her more philosophical, and perhaps she'd be less driven by revenge and more focused on the long - term well - being of the realm.
Arya's identity as a Stark would be more deeply ingrained in her. She would start to embrace all the values that the Starks stand for. She might even try to teach these values to the people of the North. Her development would also involve her coming to terms with her past as a Faceless Man. She would decide how much of that part of her should be part of the new Stark legacy she is building.
One plot idea could be Arya having to deal with political intrigue in the North. Maybe there are rival lords who don't fully accept her as Queen and she has to outwit them. Another could be Arya facing an external threat like a new wildling uprising, but she uses her unique skills to handle it. And perhaps she could be on a quest to find a long - lost Stark heirloom that is said to have the power to unite the North even more firmly under her rule.
Their relationship might become stronger. They've both been through so much alone, and now they'll depend on each other more. They could become like partners in crime again, just like when they were kids, but with a more mature bond.
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.
Their relationship often develops through shared experiences. For instance, when they face a difficult battle together, it deepens their trust in each other.
She might become more confident in her earlier years. In the original story, Arya faced many hardships that made her grow in a certain way. But if she goes back in time, having the knowledge of future events, she could be bolder in her actions and decisions from a young age. For example, she might be more assertive in dealing with Sansa when they were kids, and not let Sansa's girly ways get to her as much.
Arya's character could develop by facing new moral dilemmas. Being in a brothel, she'd see the exploitation of women and might decide to take action against it. This would add a new layer to her sense of justice.
Arya's character develops through her experiences. She faces hardships like the death of her family members which hardens her. She starts learning the ways of the Faceless Men, which changes her view of the world and herself.