Well, perhaps in this fanfiction, Batman becomes a god and has to deal with the moral implications of his new powers. He might struggle with whether it's right to use his godly abilities to control people's free will in order to create a perfect world. Also, there could be a plot where he tries to ascend to an even higher level of godhood and has to go through various trials and tribulations to get there.
One possible plotline could be Batman using his new god - like powers to completely reform Gotham in an instant. He could eliminate all crime, poverty, and corruption with a single thought. Another might be him facing off against other god - like beings from different mythologies who see him as a threat to the balance of power in the universe.
In 'batman becomes a god fanfiction', a really cool plotline could be that Batman, as a god, decides to share his powers with the people of Gotham. He trains them to be like him, with enhanced abilities, and they all work together to build a utopia. But then, some of the people misuse their powers, and Batman has to find a way to fix the situation without taking away the powers completely. He has to balance justice and mercy, which is a classic Batman theme, just on a much larger and more god - like scale.
Perhaps in the 'batman becomes a god fanfic', a plotline could involve Batman facing off against other god - like entities. He has to prove himself worthy of his new status among these powerful beings. This could lead to epic battles and alliances as he tries to protect not just Gotham, but the entire world or even the universe from threats that only a god - Batman could handle.
One possible plotline could be Nightwing struggling to fill Batman's shoes in Gotham. He might face challenges like dealing with more dangerous villains who see him as a new target. Another could be his relationship with the other members of the Bat - family changing as he takes on the Batman mantle.
One interesting plotline is when Jason Todd comes back as the Red Hood and tries to take over Gotham's criminal underworld. This creates a lot of tension with Batman who is trying to uphold justice in the city.
One interesting plotline could be that Batman, who is usually so brooding and solitary, starts to open up to Hawkgirl's more adventurous and free - spirited nature. Their relationship could develop as they team up to fight a common enemy that requires both Batman's detective skills and Hawkgirl's combat abilities.
One possible plotline could be Batman and Catwoman's wedding being interrupted by one of their villains. Another could be them dealing with how to combine their very different lifestyles while married. Maybe they also have to face public scrutiny as Gotham's most unlikely couple.
One possible plotline could be Naruto's struggle to adapt to the physical and social changes of becoming Naruko. He might face new challenges in how others perceive him/her, like dealing with different expectations in the ninja world. Another could be exploring new relationships, as Naruko might interact differently with characters like Sasuke or Sakura.
Well, in some 'harry becomes lord fanfiction', he could be given a lordship over an ancient wizarding family's estate. Then he discovers hidden secrets about the family, like a long - lost magic or a prophecy. He may also have to face challenges from dark wizards who want to use his new position for their evil plans. He has to quickly learn about politics and power plays in the wizarding society.
Another plotline might involve Harry's transformation leading to him having new magical abilities related to his vampire state. He could discover that he can now move with super - speed through the halls of Hogwarts, which both helps and hinders him in his adventures. He also might have to deal with the fact that some vampires in the fanfiction world view him as an oddity since he was once a wizard and now a vampire.
One possible plotline could be Harry's struggle with the transformation process. He might face difficulties in controlling his animagus form at first, leading to some comical or dangerous situations. For example, accidentally transforming in the middle of a class.
One possible plotline could be Harry struggling to control his new Veela powers while at Hogwarts. For example, his allure might accidentally cause chaos during classes or Quidditch matches.