This is my idea to how the end to the series should go.
Quidditch. What a glorious little game. I, being the infamous Harry Potter, simply love this grand sport. Little did I know that it would bring about the demise of Hogwarts. Speaking of Hogwarts, what an awkward name. I wonder if the founder had a hog. I bet it was a cheeky little creature, with warts. The founder loved him very much. His name was Tomfoolery. (The pig's name) He was a tomfoolish pig. And he died from his own tomfoolery. The devastated owner decided that such a pig deserved to have an honorable institution named after him. Since no one would take a school titled Tomfoolery seriously, he named it after something else that reminded him of his beloved pet. A hot with warts. He had it. The perfect title to last generations. Hogwarts. Anyways. Back to the point of my point. Quidditch
Well, that game killed everyone. Hermionie. Ron. Yes, even that evil blonde boy. Horrors!
It was all Dumbledore's fault. That bumbling ox. Who would of known he was capable of such atrocities. I promise I am getting to the point. You have probably guessed the point already. Yes that is right. He angered the real inventors of the game, Norwegians. Only they played it on reindeer, not brooms. Anyways. Dumbledore, that bumbling ox, came back from the dead, and stole the patent for the game from the kind Norwegians. He brought it to the fine educational institute of Hogwarts and said it was his own. The kind Norwegians asked him kindly for the patent back. But he was dead. The kind Norwegians could not prove that he stole it, being that dead people do not have a tendency to steal things, especially patents to strange Norwegian games. Well the kind Norwegians decided to stop being kind. They were now angry Norwegians. These Angry Norwegians asked for their game back. They did not get it. So they invaded Hogwarts with their reindeer to get back what was rightly theirs. And that is how that game killed everyone. Hermionie. Ron. Yes, even that evil blonde boy. Horrors!
This is how the series will end.
P.S. this is not meant to offend anyone. I have never read any of the harry potter books and know nothing about them. I am a certified poser. My sincerest apologies to the general public.