A really cool concept could be a time - travel fanfiction. Batman accidentally travels to Wolverine's universe in the past. He has to adapt to this new world full of mutants while also trying to find a way back home. Along the way, he teams up with a young Wolverine and they have many adventures together, with Batman using his detective skills and Wolverine his combat abilities.
Perhaps a fanfiction where Wolverine finds himself in Gotham and Batman initially suspects him of being a threat. But as they interact, they realize they have more in common in terms of their sense of justice and start to work together. Wolverine could also introduce Batman to some of the more otherworldly threats he's faced in his own world.
One idea could be a story where Batman and Wolverine team up to take on a powerful new villain in Gotham City. The contrast between Batman's high - tech gadgets and Wolverine's brute strength would make for an exciting dynamic.
A third idea is a time - travel based fanfiction. Wolverine travels back in time to the era before the founding of the ninja villages in the Naruto world. His presence could disrupt the normal flow of history, and he has to work with the early ninja clans to either fix what he's disrupted or use this opportunity to change the Naruto world for the better before it becomes the world he first encountered.
Another idea might be that one Batman is from the future and has come back to meet his past self. The future Batman could show the past version some new technologies and tactics, but also warn him about the potential consequences of certain actions. This could lead to self - reflection for the past Batman and a change in his approach to crime - fighting.
One idea could be that Deadpool and Wolverine are forced to team up on a mission in a post - apocalyptic world. They have to battle against a new breed of mutants who have gone rogue. Deadpool's crazy antics would constantly annoy Wolverine, but they'd gradually learn to work together.
One idea could be a Wolverine and Batman crossover. Wolverine could find himself in Gotham City and team up with Batman to take on a common enemy like Ra's al Ghul who is interested in Wolverine's healing factor. They would have to combine their skills, with Wolverine's brute strength and healing and Batman's detective skills and gadgets.
Well, you could write a Wolverine fanfic about his relationship with other X - Men in a more in - depth way. For example, how his friendship with Storm develops over time. Or you could do a fanfic where Wolverine has to face his worst fears, like being trapped and unable to use his claws. Also, a fanfic that shows Wolverine's life before he joined the X - Men and his adventures as a lone wolf would be great.
One idea could be that Wolverine and Viper are forced to team up against a common enemy. They start off distrusting each other due to their different natures. Wolverine is more of a lone wolf with a sense of honor, while Viper is cunning and often self - serving. But as they face the enemy's attacks, they gradually learn to rely on each other's strengths. Wolverine's combat skills and healing factor complement Viper's strategic mind and her venom - based powers.
One idea could be that Percy Jackson finds himself in the X - Men's world and teams up with Wolverine to fight a common enemy like a powerful water - based mutant. They could combine Percy's water powers and Wolverine's combat skills.
Well, a possible plot is that the baby's powers start to manifest in a way that creates a connection between Wolverine and Rogue on a deeper level. They have to figure out how to control and understand these new powers together. Also, there could be a story where the baby is kidnapped by an anti - mutant group, and Wolverine and Rogue, along with the other X - Men, have to mount a rescue mission. It could show their determination to protect their family.
One idea could be Wolverine getting transported to the DC universe and teaming up with Batman. They could combine their detective skills to solve a mystery that involves both mutants and metahumans. For example, a new villain is creating chaos in Gotham by using some sort of technology that affects Wolverine's healing factor in strange ways.
One idea could be that they face a powerful new mutant threat together as a married couple. Their combined skills, Wolverine's combat abilities and Storm's power over the weather, make them a formidable team against the enemy.