A third plot could be that Harry is reborn in a time - loop scenario. Every time he dies, he is reborn again at a certain point in his life. He has to figure out how to break this loop while also trying to prevent the tragedies that keep occurring. This could involve a lot of self - discovery and exploring different magical abilities he may not have known he had in his previous lives.
Another plot might involve Harry being reborn into a different family within the wizarding world. This new family could have its own secrets and powers. Harry then has to navigate his new identity while still being aware of Voldemort's impending return. He might have to deal with different loyalties and expectations in this new family dynamic.
One idea could be that Harry is reborn with all his previous memories intact. He uses this knowledge to change the course of events much earlier. For example, he could start befriending Hermione and Ron in a different way, perhaps by being more upfront about his past experiences and the threats they will face.