I will be rather surprised if at least some of you haven't found this yet, but there is an
interview with JK Rowling that clarifies some of the questions left at the end of the 7th book. Apparently there was another epilogue entirely that detailed EVERYONE'S lives, but she cut it in favor of something more open-ended. Makes you hope she might publish that other epilogue sometime, but there are always the fans, ready and willing to write about it on their own I suppose.
(interview link stolen from
summonerluna)