What are some possible plot developments in a fanfic where Batman doesn't know Robin's identity?

The Joker's death at Batman's hands could also have an impact on the other villains. Some might see it as a warning and become more cautious, while others might see it as an opportunity to fill the power vacuum left by the Joker. Harley Quinn, for example, could either be driven to seek revenge on Batman or be forced to reevaluate her own life of crime without the Joker's influence.

In fanfic, his identity reveal could also lead to a public outcry. Gotham's citizens might have mixed reactions. Some could see him as a hero who has been secretly protecting them, but others might fear his power and the fact that he has been operating outside the law. There could be calls for his arrest or for more government control over vigilantes.

Well, one possible plot development could be that the kidnappers demand a ransom from Batman. Batman then has to race against time to find Robin without alerting the media or causing panic in Gotham. Another development might be that Robin manages to leave some hidden clues for Batman to find while being held captive. Maybe he uses his martial arts skills to briefly overpower one of the kidnappers and mark a symbol on the wall that only Batman would understand.

One reason could be that Batman is written as being too self - absorbed in the fanfic. He might be so focused on his own mission that he doesn't want the distraction or responsibility of taking in Robin.

It could also be part of a bigger plan. Robin might be working undercover for some other organization or person, and revealing his identity to Batman would blow his cover. So he has to keep it a secret while still being Robin and working with Batman.

One possible plot development could be that Tsunade trains Naruto more intensively in medical ninjutsu. Since she's his grandmother, she might feel a stronger obligation to pass on her skills.

One possible plot development could be Naruto having to deal with Sasuke's relationships. For example, he'd have to interact with Sasuke's friends in a different way than Naruto would normally. He might also discover new things about Sasuke's past that even Sasuke himself was not fully aware of. And Naruto's own skills and abilities might be affected by being in Sasuke's body, leading to some interesting battles or training sessions.

One possible plot development is that Nagato and Naruto form an alliance to take on a new, greater threat. This threat could be an ancient evil that requires both Nagato's power and Naruto's spirit. Another development could be Nagato using his abilities to help Naruto unlock new powers or forms. For example, he might help Naruto better understand the Sage of Six Paths' power within him.

One possible plot development could be Naruto's ideals getting warped due to some traumatic event. For example, if he fails to save a dear friend, he might start to believe that the only way to achieve true peace is through extreme force. Another development could be his relationships turning sour. Maybe his friends start to fear his new, twisted self and Naruto, feeling betrayed, becomes even more deviated from his original self. Also, his view of the ninja world could change completely, seeing it as a place that needs to be remade in his own image rather than following the traditional ways.

One possible plot development could be the initial shock and adjustment for both Naruto and Mei. They would have to deal with the reactions of their respective villages. Naruto's friends in Konoha might be surprised, and Mei's allies in Kirigakure would also have their thoughts.