Another plot idea could involve Spiderman trying to regain the trust of the public while still in his 'Back in Black' persona. He could be doing heroic deeds but the public is still scared or suspicious because of his new, more aggressive look and attitude. He would have to find a way to show that he's still the friendly neighborhood Spiderman at heart.
One idea could be that Spiderman has to face a new villain who is somehow related to the events that led him to go 'Back in Black'. Maybe this villain has a personal vendetta against Peter Parker specifically during this dark phase of his life.
One plot idea could be that Black Cat steals a powerful artifact which has the potential to disrupt the balance in New York. Spiderman has to team up with her reluctantly to stop the chaos it might cause. Along the way, they start to understand each other's motives better and develop a complex relationship.
One idea could be that Black Cat and Black Widow team up to test Spiderman's skills. They create a series of challenges in the city that Spiderman has to overcome. Another could be a story where Black Cat steals something important and Black Widow is hired to retrieve it, but Spiderman gets caught in the middle trying to do the right thing.
One idea could be that the baby has some of Spider - Man's powers and Black Cat's agility. Maybe the baby gets into little adventures in the city, like accidentally web - swinging into a building under construction. And Spider - Man and Black Cat have to work together to keep the baby safe while also protecting their secret identities.
Another plot could involve a time - travel scenario. Spiderman and Black Widow get sent back in time to a crucial moment in the history of the Avengers. They have to work together to make sure the events unfold correctly without changing too much of the timeline. Along the way, they discover secrets about their predecessors and how they can apply those lessons to their own lives.
One idea could be that Spiderman 2099 has to team up with a group of rebels from a future dystopia to take down a powerful corporation that controls the city. They might face advanced technology and dangerous enforcers.
A plot could involve a strange device that affects their powers. Spiderman and Black Cat have to figure out how to reverse it while also dealing with their relationship. For example, the device could make Black Cat's bad luck powers go out of control, and Spiderman has to use his wits and strength to keep them both safe and also find a way to fix the situation. This would add an interesting layer to their relationship as they rely on each other more.
One idea could be that Black Cat steals a valuable item, and Spiderman has to track her down. But when he finds her, they discover a bigger threat together and have to team up to stop it.
Another idea is a time - travel fanfiction. Spider - Man could be sent back in time to when his Uncle Ben was still alive. He would have the chance to prevent his uncle's death, but he'd also have to deal with the consequences of changing the timeline, like how it might affect his own development as a hero.
A story could be set in a future where the worlds of Marvel and DC have merged. Spiderman and Starfire are part of a new superhero team. They have to deal with the cultural differences between their two groups of heroes as well as face off against new villains created by the merger of the two universes.
One idea could be exploring what would happen if Spider - Man had to team up with a villain to stop a greater threat. For example, partnering with Doctor Octopus to take on an alien invasion.