Living with Wonder Woman could expose Danny to different sources of power. Themyscira might have some sort of energy or magic that could interact with his ghostly powers. This could lead to the development of new powers or a different form of his existing powers. For example, he could gain the ability to fly faster or have a more stealthy form of phasing that is not only useful for going through physical objects but also for sneaking around undetected in a more magical or energy - based sense. His powers would no longer be just about being a half - ghost, but a combination of his ghostly nature and the new elements he's exposed to through Wonder Woman and her world.
His confidence might grow. Flash is a well - known and respected hero, so being around him could make Danny believe more in his own abilities. He may become more outgoing and less hesitant in using his powers for good.
The story might start with Danny being in a difficult situation in his own world. Wonder Woman, seeing his potential and the good in him, decides to adopt him. She could take him to Themyscira, her homeland. There, Danny would be exposed to a whole new culture and way of life. He might learn about their values, like truth and justice in a different context. And his powers could be enhanced or modified in some way by the magic and advanced knowledge on the island.
Danny Phantom can go intangible and invisible, which would be really useful for sneaking up on enemies. Wonder Woman has her super strength and speed. So, Danny could use his invisibility to get close to an enemy unnoticed, and then Wonder Woman could quickly rush in with her super strength to take the enemy down. For example, if they were facing a group of powerful demons, Danny could scout ahead invisibly and then signal Wonder Woman to attack.
His powers could become more ice - based. Instead of the normal greenish - blue energy, his blasts might turn a frosty white. His ability to fly could also be affected, with a cold trail following him as he moves through the air.
Izuku would likely become more confident. With Danny's powers, he'd have an edge in battles. He might start to stand up to bullies like Bakugo more quickly. His self - esteem would grow as he realizes he can be a great hero not just with a quirk, but with these unique powers.
The Joker would probably be both intrigued and excited. He might see Danny's powers as a new and interesting toy to play with. He could try to find ways to manipulate Danny into using his powers for the Joker's own chaotic purposes. For example, he might trick Danny into using his intangibility to break into a high - security building so the Joker can plant some crazy bombs or something.
In the lead - up to the wedding, they would have to work through a lot of issues together. Sam might help Danny come to terms with his role as a half - ghost in a more positive way. And Danny would support Sam in dealing with her family's concerns. This would strengthen their bond and make their relationship more mature and stable for the wedding and beyond.
The plot could change in terms of her love interests. Instead of the typical male - led romantic arcs, there could be new female - centered ones. For example, she might have a different type of relationship with a male character, where she takes the lead more often.
Danny could use his invisibility power to play pranks on the students, but also to teach them about stealth and awareness. His super strength could be used to demonstrate physical feats in a Muggle Studies class. And his ability to shoot ecto - blasts could be incorporated into a new type of combat magic training.
His powers would be quite complementary. His flight ability could match up with Superman's in some ways. And his ecto - energy based attacks could add a different type of offensive power to the team.