One idea could be exploring how Batman reacts to the news. He might be conflicted between his duty to Gotham and his feelings for Talia. Another could be about Talia's own internal struggle, as she is part of the League of Shadows yet having a child with Batman. Maybe she has to decide whether to raise the child in the shadows or try to give it a more normal life in Gotham.
Perhaps the fanfic could focus on the future of Gotham with the child. The child could potentially inherit both Talia's and Batman's qualities. It could be a story about how the city might change if the child grows up to be a force for good or evil. There could be a time - jump in the story, showing Gotham years later with the child's influence starting to be felt.
A possible plot could involve the other villains' reactions. They might see the unborn child as a weakness of Batman's or an opportunity to gain power. For example, the Joker could try to use the situation to drive Batman insane in a new and twisted way. Also, Talia's father, Ra's al Ghul, might have his own plans regarding the grandchild, which could create a lot of family - related drama in the fanfic.
One idea could be that Talia has to choose between her loyalty to her father and her love for Batman. She could be in a situation where she has to betray one to save the other.
Well, perhaps the story could focus on Talia al Ghul's pregnancy in a world where her powers are affected. Since she's pregnant, her physical and mental abilities might change. She could then have to rely on others for help, which is a big deal for someone as independent as her. This could lead to new alliances and a whole new dynamic in the story, as she has to adapt to not being as in - control as she usually is.
One idea could be that Raven is in danger from a new dark magic threat and Batman, with his detective skills, helps her track down the source. They start to learn from each other, Raven about Batman's human tenacity and Batman about Raven's otherworldly powers.
One idea could be exploring Bruce Wayne's early training in more detail. Show his struggles and how he overcame them. For example, his first encounters with Ra's al Ghul's League of Shadows could be more in - depth, with new challenges and characters added.
One idea could be that Robin gets trapped in an alternate dimension where the villains are in control and Batman has to figure out a way to bring him back. Another could be a story where Batman is injured and Robin has to take on a major villain alone, learning to trust his own instincts more. Maybe a plot where they encounter a new, powerful ally who turns out to have a hidden agenda that threatens Gotham.
One idea could be that Batman and Supergirl team up to stop a powerful alien threat that is beyond the capabilities of either of them alone. They start off distrusting each other due to their different methods, but as they face challenges, they learn to work together and respect one another's skills.
A plot could involve Batman investigating a mystery that has ties to Themiscyra. For example, some ancient artifacts from Themiscyra are showing up in Gotham's black market. As he delves deeper, he discovers a connection to a long - lost Amazonian prophecy. Or perhaps there's a character from Themiscyra who has come to Gotham seeking Batman's help to save her homeland from an internal power struggle.
One idea could be that the Witchblade somehow ends up in Gotham City. Batman initially suspects it to be a new weapon in the hands of some villain. But as he investigates, he discovers the unique power and origin of the Witchblade. Maybe the Witchblade chooses Batman as its wielder for a short time to fight against a powerful supernatural threat that Gotham has never faced before.
One interesting Batman and Talia fanfiction could be about their first encounter from Talia's perspective. It might explore her initial attraction to Batman, how she saw his strength and his sense of justice, which was different from what she was used to in the League of Assassins.
A great plot idea is that the pregnancy causes a shift in the dynamic between Batman and Selina Kyle. Batman becomes overly protective, which Selina initially resents. Meanwhile, Gotham's villains start to plan ways to use the pregnancy to their advantage. The fanfiction could explore how Batman and Selina navigate this new threat while also preparing for their new family member. They might even start to train their unborn child in self - defense in a very unique way.