One idea could be exploring Danny's new role as a hero on a global scale. Maybe he has to deal with new threats that are attracted to his increased fame. Another could be delving into his relationships with his friends and family after the big events in Phantom Planet. For example, how does his relationship with Sam and Tucker change now that he's a more public hero?
Well, you could write about Danny facing an enemy that uses the chaos after Phantom Planet to their advantage. This enemy could be someone who was jealous of Danny's newfound status. Also, it would be cool to see Danny trying to balance his normal life, like school and part - time jobs, with his hero duties. He might struggle to keep his identity a secret from new people in his life who are curious about the famous Danny Phantom.
A great fanfiction idea could be a time - travel story within the Danny Phantom Phantom Planet universe. Danny somehow gets sent back in time to before he became a half - ghost. He has to figure out how to get back to his own time while also dealing with the knowledge he has of the future. This could lead to some really interesting interactions with his past self, his family, and friends. And he might accidentally change things in the past that could have a huge impact on the future of the Phantom Planet.
Well, a great plot for Danny Phantom Planet fanfiction could be about Danny's life after saving the planet. He might face new challenges like dealing with the fame that comes with being a hero. Some people could idolize him while others might be jealous or even fear him. You could also write about Danny trying to balance his normal life with his superhero duties on a more global scale. He could have to travel around the world to solve problems related to the changes that occurred during the Planet event.
One idea could be that Danny gets an illness that affects his ghost powers. For example, he might start losing control over his intangibility or invisibility. This could lead to some really comical or dangerous situations. Another idea is that his friends try to find a cure for his strange ghost - related illness while also keeping it a secret from the town.
A new character could be a foreign hero who comes to Amity Park to learn from Danny. They might have different powers and a different approach to ghost - fighting. Another possibility is a scientist who is intrigued by Danny's powers and wants to study him, not in a malicious way, but out of pure scientific curiosity.
One idea could be exploring Danny's relationships in a different way. For example, how his friendship with Sam and Tucker might develop if they faced a new supernatural threat. Another could be a story where Danny discovers a new power and has to learn to control it while dealing with school and his ghost - fighting duties. And perhaps a fanfiction where Danny travels to an alternate dimension within the Danny Phantom universe.
Sam and Tucker are really interesting characters to focus on. Sam's gothic personality and her strong beliefs can lead to some great storylines. Tucker's tech - savvy nature can be used in many ways, like developing new gadgets or helping Danny figure out some tech - related mysteries. And Jazz, Danny's sister, with her psychology knowledge could play a crucial role in understanding Danny's situation better in a fanfiction.
One interesting story could be about Danny and Sam going on a ghost - hunting adventure together. They might discover a new type of ghost that has unique powers and they have to figure out how to defeat it using their combined skills.
One idea could be Danny Phantom using his powers to help during emergency situations like in 911 calls. For example, he could use his intangibility to reach victims trapped in collapsed buildings.
Well, you could do a fusion where Danny is combined with a character from a detective show, like Sherlock Holmes. Danny's ability to go intangible and invisible would be a great asset for Sherlock in solving mysteries. Another option is to fuse him with a character from a video game, like Link from The Legend of Zelda. Danny could use his powers in the Hyrule world, fighting off Ganon's minions in a whole new way. And a really unique idea could be fusing Danny with a mythological creature, like a phoenix. Danny could gain the ability to rise from the ashes and have fire - based ghost powers.
One idea could be a crossover where Danny Phantom accidentally gets transported to the jungle where Kaa lives. Kaa, being a sly snake, could initially see Danny as a threat or an interesting new creature to toy with. Danny, on the other hand, has to use his ghost powers to navigate this new and dangerous environment.