Albus and Scorpius, around 5th year
One thing I didn't like about the end of the book is that there still seem to be so much rivalry and bad feelings between Griffindor house and Slytherin house. After Dumbledore's speech in OotP about inter-house unity I really wanted the houses to mix a bit more. Assuming Albus did end up in Griffindor and Scorpius in Slytherin, I wanted to draw some A/S, a pairing which I'm starting to quite like. I'd love it if Scorpius was more noble and compassionate than Draco, and Albus just a bit less couragous than Harry.