My guess: Harry and Ron go tango uniform and future books feature Hermione.
My nephew believes that Ron is a Seer from clues given through the books. It would be unusual for Ron to be caught unaware; but he is has a pure heart and courage in the face of fear, so he may deliberately put himself in a path the save Harry or his love Hermione.
It would be unusual for Ron and Hermione not to end up together in the end.
I'm afraid for Mrs. Weasley and Harry.
Rowling is right. The rain falls on the just and the unjust. And the sacrificial savior scene may have motivated her writing of the last scene when she first put pen to paper.
Those of us doing troop support care packages pray a lot for those in harm's way. None of the ones that fall are extras to their families. Each is a main character whose death is keenly felt.