I would've liked one that was a little sooner.
Maybe Harry standing as best man at Ron's wedding and telling him, "No, you can't borrow the cloak ..." as Hermione is about to walk down the aisle. "Blimey" (and imagine the explanations that would have to be made to the Muggle half of the family)
Or Ron standing as Best Man as Harry's wedding, but then I couldn't see Hermione as Ginny's Maid of Honor.
Why not? It was Hermione after all who advised Ginny on how to relax around Harry, so that he could actually get to know her as more than just Ron's star-struck little sister.
You know, I was thinking about it this morning, and it seems to me that Ginny really set out to catch Harry, right from the start. For example, practicing her broom-flying so that she could try out for Quidditch... and have an excuse to be around Harry. Also, her involvement in the D.A. I imagine Ginny practicing her spell-casting in secret, determined to get good enough at it that Harry would notice her...
I know what you mean... maybe the next book will be
“Harry Potter BC” (Before Children)