A cool scenario would be a battle royale - style crossover where Wonder Woman is brought into the Marvel universe to participate in a tournament. She has to fight against various Marvel heroes and villains, like Thor and Loki. As she progresses, she discovers that the real mastermind behind the tournament is trying to use the chaos to open a portal to another dimension. Along the way, she forms alliances with some of the Marvel characters and together they try to stop the evil plan.
A crossover could start with Wonder Woman being summoned to Asgard by some mysterious magic. She finds herself in a strange new world and is initially met with suspicion. Thor, being the more open - minded of the Asgardians, decides to help her figure out how she got there. Along the way, they discover that an ancient enemy from Thor's past has plans to use Wonder Woman's power to open a portal to a realm full of chaos. They then have to work together to stop this from happening, with Wonder Woman teaching Thor some new combat techniques she learned on Themyscira and Thor showing her the power of the Asgardian magic.
Well, it depends on the situation. If the fight takes place in the Naruto universe where Naruto can draw on natural chakra more easily and has the home - field advantage, he could be very strong. He also has his Nine - Tails chakra which is extremely powerful. On the other hand, Wonder Woman has years of combat training and her divine weapons. In a battle of wits and strategy, Naruto's experience in fighting various opponents in his world might give him an advantage, but Wonder Woman's overall power set is also very formidable.
A fanfiction idea could involve Wonder Woman visiting Wakanda. She is amazed by the advanced technology and the unique culture. Black Panther shows her around and they start to exchange ideas about leadership and protecting their respective peoples. Then an outside threat arrives, perhaps in the form of a group of villains who want to steal Wakanda's vibranium. Together, they fight off the invaders and in the process, Wonder Woman and Black Panther become good friends and allies.
One more theme is the exploration of leadership. Wonder Woman is a strong leader in her own right. In crossovers, she often has to either lead a new group of heroes or find her place within an existing team. This leads to stories about cooperation, rivalry, and finding common ground. For instance, in a crossover with the Justice League and some other superhero team, she might have to negotiate different leadership styles.
The plot could involve Wonder Woman's bracelets being a key to an ancient power source that exists in the Marvel universe. She travels there to find it and protect it from falling into the wrong hands. Along the way, she meets Iron Man. Iron Man is initially intrigued by her technology and they have a bit of a clash as he tries to study her bracelets. But when the real threat emerges, they team up. Iron Man provides the tech - support while Wonder Woman uses her combat skills and powers to fight off the villains who want the power source for themselves.
Another aspect could be the power dynamics. The Hulk's raw strength against Wonder Woman's strength and combat skills. Hulk might initially see her as a threat and lash out, but she could use her lasso of truth to calm him down. Black Widow could teach Wonder Woman some of her spy and infiltration techniques, which could be useful in a more covert mission against a new villain that emerges from the crossover of their two universes.
Lex Luthor could be a great villain. He could be jealous of the relationship between Superman and Wonder Woman and create a plan to turn them against each other. He might use his intellect to create weapons that can target their weaknesses.
Maybe there's a powerful ancient artifact that has been stolen and is being used for evil purposes. This artifact has the power to disrupt the balance between different realms. Spiderman discovers some strange happenings in the city related to the artifact's power, like buildings randomly changing shape. Wonder Woman is also on the hunt for the artifact as it was stolen from a place under her protection. When they meet, Spiderman is initially in awe of Wonder Woman's strength and beauty. They team up, with Spiderman using his acrobatic skills to navigate through dangerous traps set up by the villains protecting the artifact, and Wonder Woman using her lasso of truth to find out where the artifact is hidden.
One possible plot could be that Naruto is somehow transported to the DC universe. He meets Wonder Woman and they have to team up to stop an enemy that is using a combination of chakra - based jutsu and advanced technology from both their worlds. Naruto's ability to sense and manipulate chakra could be a great asset in the DC universe filled with various super - powers.