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 - because there are deaths - more deaths coming.

I found this cited from an interview, so I guess it's what they're referring to. 'After they leave school' is quite unspecific, and certainly doesn't indicate to me that everyone's whole lives are laid out.