One unexpected situation could be Danny revealing his identity to the whole town not by accident but on purpose to gain their trust in a time of great danger. For example, a powerful ghost is threatening to destroy the town and Danny thinks that if the people know who he is, they can work together better to fight the threat.
They can also introduce new plot twists. Say Danny finds out he has a long - lost sibling who is also a half - ghost. This completely changes the family dynamic and the story's direction. It allows for exploring new relationships and character growth that might not have been possible without this unexpected situation.
The Box Ghost could be really unexpected. He's usually so focused on his boxes that seeing him at a party would be a shock. He might bring his boxes as party favors or something, which would be really odd. He could keep trying to stack his boxes in the middle of the dance floor, much to the annoyance of the other guests.
Another possibility is that he's facing some emotional turmoil. Danny has a lot on his plate. He has to keep his identity a secret from his friends and family, deal with school, and fight ghosts. All this stress could be causing him to lose his appetite. He might be too worried or preoccupied to even think about food.
One possible story could be that Danny is facing a new and extremely powerful ghost. He needs help from his friends Tucker and Sam. Maybe they need to find a rare artifact to defeat this ghost. They could start by researching in the local library, looking through old ghost lore books. Tucker uses his tech skills to try and track down any leads on the artifact's location, while Sam uses her knowledge of the occult.
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.
Sam is also quite popular. Her goth - like personality and her strong - willed nature make her an interesting character. In fanfiction, she can be portrayed in different ways, like being even more involved in Danny's ghost - fighting activities.
In a Danny Phantom trans girl fanfiction, Danny could discover her true identity as a trans girl after an encounter with a special ghost. This ghost could be like a spirit guide that shows her visions of who she really is. Danny then has to figure out how to balance her newfound identity with her ghost - fighting duties. She may also have to deal with the reactions of her family, especially her parents who might be initially confused but eventually come around.
Confident Danny in fanfiction often shows leadership. He's not afraid to take charge and guide his friends in ghost - hunting adventures. He might make decisions quickly and firmly, like deciding on the best strategy to defeat a powerful ghost. His confidence gives others the reassurance to follow him.
In fanfiction, the idea of Danny and Ember having a daughter can lead to really interesting storylines. Maybe their daughter could inherit Danny's ghost powers and Ember's musical abilities, creating a unique character. She could struggle with being half - ghost, half - something else due to Ember's unique nature, and have to find her place in both the human and ghost worlds.