Do you suppose that by doing all he needs to do to get the remaining horcrux's and killing Voldemort, he would "qualify" to be an auror?
Besides, if it's the last book, JKR could just leave us hanging on that! LOL!
Gosh, I would hope so! :-)
She is going to give us a chapter of their post Hogwarts lives. Yippee
JK Rowling: "That is very good that, is assuming that anyone survives, I may kill the whole lot not really, don't write me letters. There is already a chapter written in which you find out about the survivors post Hogwarts fates, so, I will have to rewrite it when I get there, because that was written years ago and it wasn't really written on the assumption that I would use it as it is written in the hooks, it is really an act of faith, it was me saying to myself "I will get here and this information is the end point and that is where I'm trying to get to. So yes, there will be."