He might be received with a mix of curiosity and caution. Some of Dudley's friends and family who know about their past might be a bit wary of Harry at first. But those who don't know their history could be intrigued by this mysterious new guest.
When Harry goes to Dudley's wedding in fanfiction, his reception could be quite complex. Dudley's more traditional and close - minded relatives might not like the idea of Harry being there. They might see him as an oddity or a disruption. But Dudley's friends who are more open - minded could be really interested in getting to know Harry. And if Dudley has told his friends about Harry in a positive light, they could welcome him with open arms. Also, the children at the wedding would probably be fascinated by Harry and his possible magical abilities, which could help ease the tension among the adults.
In the fanfiction, if Harry goes to Dudley's wedding, it could be a chance for them to finally fully reconcile. Maybe Dudley, who has grown up a bit, would introduce Harry to his friends as his long - lost cousin. Harry, on the other hand, could bring some magical charm to the event. He might perform a little magic trick for the kids at the wedding, like making balloons float without strings. This would make the wedding more fun and memorable.
In this fanfiction, Dudley would surely interact with the Hogwarts professors. Professors like McGonagall would be strict with him, making sure he follows the rules. He might also cross paths with Draco Malfoy. Given Malfoy's attitude towards Muggle - borns, there could be some conflict there. And let's not forget the other students in his house. They would play a big role in his Hogwarts experience, either befriending or ostracizing him.
He'd probably be shocked. I mean, Dudley has always seen Harry as the odd one out in the family, and suddenly finding out he's famous in a whole different world of fanfiction would be quite a surprise.
It could completely transform their relationship. If they have a positive reunion, they might become friends. They could start to support each other in different ways. Harry could use his magic skills to help Dudley out in small ways, like fixing something around his house without Dudley knowing it was magic. Dudley, in return, could offer Harry some insights into the Muggle world that Harry might not be fully aware of.
Well, Harry and Dudley's relationship would change drastically. Harry, by adopting Dudley's child, is taking on a huge responsibility. Dudley might initially be in denial about the whole situation, but as time passes, he realizes that Harry is providing a better life for his offspring. This could lead to a thaw in their long - standing animosity. Harry might start to view Dudley as someone who has made mistakes but is also trying to do right by his child in his own way. And Dudley could start to view Harry as a real family member, someone he can rely on.
Harry might become more open and less guarded. Since he now has a brother in Dudley, he might feel more at home in the Muggle world. Dudley, on the other hand, could become less of a bully. The knowledge that he has a wizard for a brother could make him more humble and empathetic.
If the new timeline is more dangerous, Harry might become more cautious. He has to be careful not to make mistakes that could cost him his life or the lives of others.
With Ron, they might not be as close as they were at Hogwarts. Ron might be a bit jealous if Harry does really well in college. But on the other hand, they could also bond over missing Hogwarts and their old adventures.
Hermione would probably be worried at first but then start researching all she can about space magic. Ron would be a bit more skeptical but also excited for Harry. They might try to find a way to communicate with him while he's in space, using some sort of enchanted device.
His other friends from Hogwarts might not even believe it at first. They might think it's some kind of elaborate prank. But once they realized it was real, they might try to find a magical way to communicate with him in Skyrim, or even try to open a portal to bring him back.