What are some interesting plot ideas for 'Fairy Tail Heart of Fire Fanfiction'?

A really interesting plot would be if the world of the fanfiction was facing a threat that only the fire dragon powers could stop. But the catch is that the current fire dragon slayers have to combine their powers in a way they've never done before. They would have to overcome their differences and learn to work together, all while dealing with the increasing danger to their world.

One idea could be a story where a character has the power to control both fire and water, which is unheard of in the Fairy Tail world. This character could be an outcast at first but then becomes a key figure in a big battle against a powerful dark force.

One idea could be exploring the backstory of a minor character in the 'Fairy Tail Heart of Gold' world. Maybe a character who was only briefly mentioned but has a really interesting past that could be delved into. Another idea is to create an alternate universe where the events of the story took a different turn, like if the main villain in 'Heart of Gold' had a change of heart much earlier in the story.

One idea could be a new character arriving at Fairy Hills and having to adapt to the unique living situation. They could face challenges like getting along with the different personalities of the Fairy Tail mages living there.

Another plot could involve a dark mage in the Fairy Tail universe summoning Deathwing to gain power. But the summoning goes wrong and Deathwing is only partially summoned. This weakened Deathwing starts causing destruction while also being hunted by Fairy Tail. The guild then has to decide whether to try and fully summon him to send him back or find another way to deal with him.

A cool plot could be that a powerful artifact in Skyrim is causing chaos and the Fairy Tail members are summoned to find and secure it. Along the way, they meet up with the Dragonborn. Some members might befriend the Dragonborn and help in their battles, while others might be a bit more skeptical and think the Dragonborn is a threat to their own power within the group.

One idea could be that Gojo, with his overpowered abilities, joins Fairy Tail and becomes a mentor figure to the younger wizards. He could teach them new ways to use their magic and help them in battles against powerful foes.

A plot could revolve around a conspiracy within the tournament organizers. They could be trying to manipulate the results for their own gain, and the Fairy Tail members have to figure it out while competing.

A plot could involve Mystogan's past coming back to haunt him. An old enemy from his homeland tracks him down in Fiore. This forces him to face his past mistakes and traumas. Alongside his Fairy Tail friends, he has to find a way to defeat this enemy and finally come to terms with his past.

One plot idea could be exploring Aquarius's past more in - depth. Maybe a story where we see her life before she became a Celestial Spirit. Another could be a story where Aquarius has to team up with an unlikely character from Fairy Tail to save the Spirit World.