A third concept could be different settings. Instead of the traditional opera house setting, the fanfiction might take the story to new locations. Perhaps the Phantom and Christine end up in a far - off land, and their relationship evolves in a completely different cultural context.
One interesting concept could be exploring the Phantom's past in more detail. Maybe he had a family before his disfigurement and fanfiction can delve into that.
One interesting concept could be exploring the Phantom's backstory in more depth. Maybe his life before the opera house, his family, or how he acquired his musical talents.
A plot could involve Gustave getting caught in a power struggle within the opera house. The Phantom might use Gustave as a pawn to gain more control, while Gustave has to figure out how to free himself from this web of manipulation. He could also befriend some of the performers and together they try to expose the Phantom's true intentions.
Well, in some fanfictions, there are concepts like redemption arcs for Dan Phantom. It's fascinating to see how writers try to redeem such an evil character. Also, the idea of Danny using Dan's power for good in some unique situations. For example, there could be a story where Danny has to borrow Dan's strength temporarily to defeat a powerful ghost that he couldn't handle on his own.
Well, it might explore new relationships within the Phantom City. For example, Danny could form alliances with other friendly spirits against a common enemy, which would add a new layer of depth to the fanfiction. The city itself could have its own rules and hierarchies that Danny has to navigate.
Maybe in this fanfiction, the Phantom actually has a secret alliance with someone in the opera house staff. This changes the power dynamics as he's not just a lone figure lurking in the shadows. It could lead to some really interesting scenes where the staff member helps him in unexpected ways, like covering for him during his more outlandish schemes to get closer to Christine.
One idea could be exploring Erik's childhood before he became the Phantom. Maybe he had a kind mentor who tried to guide him away from the darkness that eventually consumed him.
One idea could be exploring a different backstory for the Phantom. Maybe he was once a nobleman who fell from grace. Another could be a modern - day retelling where the Phantom is a famous musician with a dark secret. Or perhaps a story where the relationship between the Phantom and Christine is more of a friendship that develops in unexpected ways.
Another plot idea could be a different love triangle. Instead of Christine being the center, it could be a new character who catches the eye of both the Phantom and Raoul, leading to a whole new set of conflicts and interactions. This could involve the new character being a singer from a different part of the world, bringing in new cultural elements to the story.
One idea could be to explore the Phantom's backstory more deeply. Maybe he had a family before he became the Phantom, and this could be a part of the fanfiction. Another could be to have Christine actually be in love with the Phantom from the start, but she's too afraid to admit it because of society's expectations.