He could be summoned to receive special training. The Order might have found a new spell or combat technique that only Harry can master due to his special abilities. This training could be crucial for the upcoming battle against the Dark forces.
Well, he might be given a dangerous mission. Maybe he has to infiltrate a Death Eater stronghold or protect a crucial magical artifact.
In such a fanfic, Harry might initially resist the summons. He has his own battles and responsibilities in the wizarding world. However, if he does go, he could introduce new concepts to the Jedi. His knowledge of complex spells and potions could be applied in ways the Jedi haven't thought of. For example, he might create a potion that enhances one's connection to the Force. The Jedi Council, on the other hand, could teach him about self - control and discipline in a different way than Hogwarts did.
It could be that the Order has a plan that only Harry can be a part of. His unique experiences and skills, like his ability to resist the Imperius Curse and his connection to Voldemort, are valuable. So they summon him to put these to use in their fight against the Dark side.
In this fanfiction, perhaps Harry Potter would be in a state of great confusion when summoned by the queen. He might initially think it's some kind of dark magic trick. Maybe he'd be worried about leaving his wizarding world duties behind. And he'd likely be very curious about the Muggle royalty.
Maybe Harry tries to reason with the troll. He could use his magic skills to calm the troll down and prevent it from causing more chaos.
In this kind of fanfiction, Harry might face various consequences. He could end up in dangerous situations all alone without the support and guidance of the Order. Maybe he stumbles upon a powerful dark magic artifact while on his own and has to figure out how to deal with it without the proper knowledge from the Order.
The fangirl could be in for a real treat. She may discover unique interpretations of the Harry Potter universe. Fanfics often explore different character backstories or alternative timelines. So, she could learn about what would have happened if Harry had been sorted into Slytherin instead of Gryffindor. She might also encounter new magical creatures or spells that the author of the fanfic has created. And, depending on the type of fanfic, she could be part of a big adventure to save Hogwarts from a new, even more powerful dark wizard than Voldemort.
Maybe Luna's unique personality would shock the Dursleys. She might say some strange but profound things that leave the Dursleys completely bewildered.
In the fanfic, when Harry meets Viktor, they could end up having a friendly rivalry. They might challenge each other to a mini - Quidditch match just for fun. And perhaps they would also talk about their different Quidditch teams and how they train. Since Viktor is from Durmstrang, his training methods could be very different from what Harry is used to at Hogwarts.
One possibility is that their meeting is a vision or a dream - like encounter. Harry could be drawn into Azkaban in his sleep or through a magical object. During this encounter, Sirius could give Harry advice on how to deal with the upcoming challenges at Hogwarts. He might warn Harry about certain people who can't be trusted and offer his insights on the growing dark forces.
Well, it could go a few ways. One possibility is that the Malfoys would start their typical taunting of Harry. Lucius might look down on Harry with disdain and make some veiled threats. Narcissa, on the other hand, could be a bit more reserved. Harry, being Harry, would likely respond with his own brand of courage. He might even try to use the situation to gain some information about the Malfoys' recent activities if he suspected they were up to no good.