Thestrals Below the Mistletoe

What if at the Hallway of Mysteries Sirius survives with one well placed disarming charm? It worked against the Dark Lord, didn't it? What if Harry's luck and timing worked in his favor? What does it mean for a phoenix to die? What happens if all the Horcruxes are killed before sixth year? What if Harry saw Luna for who she was? The love of his life. A less depressing sixth year.