Well, he might face a lot of opposition from his former Gryffindor mates. They could see his renouncement as a betrayal of the house. This could lead to some tense confrontations.
The story could also take a turn where Harry decides to be an independent entity without being associated with any house. This would be a very unique situation in the wizarding world. He could then form new alliances with students from all houses who also feel marginalized or who support his decision. This might lead to a new movement within Hogwarts to reform the house system.
He might seek refuge in another house. For example, he could try to convince the Hufflepuffs to take him in. The Hufflepuffs, known for their acceptance, might be his best bet. This could lead to a whole new set of relationships and storylines as he adjusts to a different house environment.
The story may take a turn where Harry becomes a sort of mediator between the houses. Since he has left Gryffindor, he has a different view and can help bridge the gaps between the different groups in Hogwarts. He might also embark on a personal journey of self - discovery outside the framework of Gryffindor values, which could lead to new magical abilities or insights.
After leaving Gryffindor, Harry may embark on a journey of self - discovery. He could travel to different places, learn new magic, and meet new characters outside of the Gryffindor - centric environment. This new path could lead him to discover a new purpose or a new way to fight against the forces of evil that doesn't rely on the Gryffindor identity.
The story could develop in a way that Harry goes through a period of self - discovery. Without the Gryffindor identity, he has to re - evaluate who he is. He might explore different kinds of magic that Gryffindor house never encouraged. This exploration could lead him to new powers and a new understanding of the wizarding world.
He might become more independent. Without the support of Gryffindor, he has to rely solely on himself. So he becomes more self - reliant and his decision - making skills improve.
His character often develops a stronger sense of self - identity. Knowing he is the son of Gryffindor gives him a different perspective on his own actions and destiny. He may become more confident in his leadership abilities as he is now linked to one of the greatest wizards in Hogwarts' history.
In fanfiction, once Harry Potter falls through the veil, the plot could take many directions. One possibility is that he discovers a conspiracy that led to his fall. He might then have to team up with some unlikely characters to expose the truth. Another direction could be that he has to adapt to a world where time moves differently, and he has to race against time to get back to his own world before it's too late.
After Harry passes out from Dementors in fanfiction, the plot may take a turn towards his character development. He might become more determined to fight against the forces of darkness. His friends could also become more protective of him. The story could then focus on training Harry to better defend himself against Dementors, leading to new magical skills or knowledge.
Well, it could be that the fanfiction writer is trying to subvert the traditional narrative. Harry has always been the hero of Gryffindor, but in this new take, he hates it. Maybe he sees the flaws in Gryffindor that are often overlooked in the original story, like the over - emphasis on courage which can sometimes lead to recklessness and he doesn't like being part of a house with such a one - dimensional view of what's important.