Maybe Arya gets caught trying to save Ned at the last moment and is taken prisoner. This would be a huge twist as it changes her whole path from being a free - roaming girl to a captive of her enemies.
Well, it would likely make her more vengeful. Seeing her father unjustly executed would fuel her desire for revenge against those responsible, like the Lannisters. This could accelerate her journey towards becoming a more hardened assassin.
Another theme is sacrifice. Since they are in a dangerous world of 'Game of Thrones', they might have to sacrifice personal desires for the greater good. Fanfictions often show how they make tough choices regarding their family and the North.
The main characters are Ned Stark and Ashara Dayne. Ned is a noble and honorable man from House Stark, known for his loyalty. Ashara is a beautiful and mysterious woman from House Dayne.
One possible plot development could be that Ned gains new political insights from Renly. Renly might share his ideas about ruling and power, which could make Ned reevaluate his own stance. For example, if Renly has a more liberal view on how to deal with the common people, Ned could start to consider implementing some of those ideas in the North.
In 'Game of Thrones', Sansa is Ned's daughter. There is no sexual relationship between them in the official story as it goes against the nature of their family relationship. The show adheres to a certain moral and narrative structure.
One simple way in fanfiction could be through some kind of magic. Maybe there's a powerful red priestess who discovers Ned's body before it's fully decomposed. She uses her magic to resurrect him, much like Thoros of Myr did with Beric Dondarrion. Once back, Ned could play a major role in the political games again, this time with more knowledge and a thirst for revenge against those who wronged him and his family.
Well, in some fanfictions, Ned and Ashara could be involved in a love triangle with another character. This would add a lot of drama. For example, if there was a misunderstanding between them because of this third person, it could lead to heartbreak and tension. Also, perhaps they worked together to uncover a conspiracy in King's Landing, which put their lives at risk but also strengthened their bond.
Ned might become more open - minded. Renly has different views and ways of doing things compared to Ned. Listening to Renly could expose Ned to new ideas, causing him to be less rigid in his traditional beliefs.