LOL
"There are things worse than death, Tom. You can kill me, but you cannot destroy me"
"I know. That's why I'm going to destroy your socks first!"
"Nooooooooooooo...."
"Wormtail? Get me my scissors! Muhahahahaha"
Or maybe Dumbledore's socks are super enchanted karate socks that finish Voldemort off once he tries to touch them... and when everyone wonders how that could happen, Dumbledore remembers they where made by James Potter the day Harry was born, to calm himself down, and the prophecy wasn't about Harry in the first place. They're all so happy they decide to have a party, and on the cover you can see Harry and Dumbledore preparing the pumpkin bowl. The handshake is part of the truth or dare game that follows. In the future, Draco will play Juliet in the new Hogwarts Drama Club, Harry will marry Ron and live happily ever after, Hermione will try to marry Ginny, but Ginny dies during the ceremony because she misunderstood the Muggle tradition to hide the bride's face with a veil. Snape dies heroically, saving Trevor from Dumbledore's left karate sock that's trying to take over world domination.
So, not too unexpected, please!
Sorry for being OT, I just couldn't help myself.