Well, one key element could be the complex characters. In fanfiction, authors often explore the backstories and motives of the bastards in the Game of Thrones universe more deeply. Another element might be the power struggles. Since the original series is full of political intrigue, the fanfiction could expand on how the bastards navigate these power - hungry environments. And of course, the setting. The harsh and vividly described world of Westeros in the original serves as a great backdrop for the fanfiction to unfold its own tales.
Some of the secondary characters could include those who interact with the bastards. It could be a mentor figure, an old knight who takes one of the bastards under his wing and teaches him the ways of war and honor. Or it could be a love interest, a noble lady who falls for one of the bastards despite the social barriers, adding a romantic sub - plot to the story.
Well, there would obviously be the bastards themselves. They could be given names like Joffrey Jr. (even if it's just a fan - given name), a son who has all of Cersei's cunning and a thirst for power. Then there could be a daughter named Myrcella - like, after the real Myrcella but with a different personality. She might be more fierce and independent, not willing to be a pawn in the political games like the original Myrcella.
Jon Snow is always a memorable character in Battle of the Bastards fanfiction. His leadership and determination are often central to the stories. He is the one leading the fight against Ramsay Bolton, and his actions and decisions drive the plot forward. Another is Ramsay Bolton himself. His cruelty and cunning make him a very interesting character. In fanfiction, his devious plans and his attempts to outwit Jon are often explored in more detail.
The 'A Game of Bastards' fanfiction can differ from the original series in multiple aspects. Firstly, in character development. The fanfiction can provide a more detailed and nuanced exploration of the bastards' personalities, whereas in the original series they were sometimes secondary characters. Secondly, in the themes. The fanfiction might focus more on themes like social outcast and the search for acceptance which are relevant to the bastards but not always the central themes in the original. And thirdly, in the narrative style. It could be more personal and introspective as it follows the bastards' journeys, while the original series had a more sweeping, epic narrative style.
One interesting plotline could be a bastard of Robert's rising to power in a unexpected way. Maybe he uses his knowledge of the Baratheon family secrets to gain influence. For example, he could expose some hidden affairs or deals that the main families were involved in, which would shake the power dynamics in Westeros.
In some fanfictions, a plot twist might be that a long - lost relative of Jon Snow shows up during the Battle of the Bastards. This relative could have a powerful army or some unique ability that changes the course of the battle completely. For example, if it was a Targaryen relative who had a dragon egg that hatched during the battle. The sudden appearance of a dragon would completely disrupt the battle and give Jon's side an unexpected advantage.
One possible plot could be the bastards uniting to claim a part of the Iron Throne. They might form an alliance based on their shared blood and the injustice they've faced. Another could be a single bastard's journey to discover his true identity and his place in the chaotic world of Westeros.
One possible plot idea could be that Cersei's bastards grow up in secret and form an alliance to take revenge on those who wronged their mother. They might use their wits and hidden identities to manipulate the power dynamics in King's Landing.