I hope we don't have to get a head start. There's something to be said for enjoying a mystery yourself before collaborative problem solving explains it for you and you have to shift to enjoying it as dramatic irony immediately rather than upon reread. I've been refraining from trying to evangelize my most certain personal theories here in part because I don't want to spoil The Eventual Reveal for others, but if there's a strong likelihood that reader preparation is going to, say, make the difference between dead-Hermione and revived-Hermione, then it's going to be likely-spoilers time...