This question about whether characters can be brought back to life in the Potter universe was closed. None of the closers left a comment explaining why they closed the question.
Why was this closed? It's not asking if the Potter series will be resumed (obviously not a good question, since no-one really knows). It's asking whether resurrection of a character via time travel is possible within this particular fictional universe, given the evidence in existing stories.
This seems very on-topic to me: asking about the boundaries of a magic system within a moderately well-defined fantasy world.