Dear Ms. Rowling,
Please to be reading Rick Riordan's Percy Jackson and the Olympians series, in particular, the last book. THAT is how you wrap up a series. Not by throwing random people and situations in, because you're exhausted, and just want to finish the damn book, then adding an epilogue that wraps everything up neatly and tidily because, dammit, you're done and you just don't want to mess with it any more!
Don't get me wrong, Deathly Hallows had some truly inspired moments, but there was so much in it that just felt... out of context, or seemed to be thrown in to move the plot along without any real thought for if it actually did move the plot along.
And I'm sorry, but killing Fred Weasley because you couldn't make yourself kill Arthur Weasley in the fifth book doesn't count as "moving the plot along." That's just called "chickening out and trying to make up for it... badly."
Still rather grumpy with you,