I would love, love, love to have a good Fleur Delacour to pair against my Bill Weasley in a dark, AU setting. In a world where Voldie (or at least his minions) win, Bill is raised to be a Death Eater by the new regime. Evil!Bill (but still with the same personality. Just...warped morals) falls for Fleur, who came in from France to join the Order. She doesn't know he's a DE until after they are involved, and drama ensues. This was conceived to involve a pregnancy, but I'm not married to that part of the idea.