(Spoiler for people who haven't read it yet. Although I think I was the last one... -__-)
As for the “19 years later” part, I think, people, that it was the perfect ending to such a story! ^_^ I thought it was so funny that James Potter junior kept teasing his little brother, Albus Severus so much. So funny, considering the history of the men they were named after! And Severus turned out to be good, which I couldn’t be happier about. Yes, I totally loved that book. *nods* And now’s the time to go search for everybody’s spoilerish posts when you first read it!