This is what JKR said about the epilogue in 2001:
JKR has also confirmed that she'll be doing the encyclopedia she has been saying she'll probably do for years so it looks like we'll have to wait for that to find out what happens to everyone.
It just doesn't match that description. If she hadn't said that, it would easier to appreciate all the good moments it does have. Such as Albus Severus and how funny Ron is. "Granddad Weasly would never forgive you if you married a pure-blood" is probably a recent addition since JKR revealed that Arthur got the reprieve.This is the final chapter of book seven. This is really where I wrap everything up, it's the epilogue. And I basically say what happens to everyone after they leave school - those who survive
JKR has also confirmed that she'll be doing the encyclopedia she has been saying she'll probably do for years so it looks like we'll have to wait for that to find out what happens to everyone.