The Aftermath of Harry Potter 7 Question?

Personally, I thought that the last installment of Harry Potter was a FANTASTIC book, but one of the things that I wished J.K. Rowling would have included in the book was the careers that Harry, Ron, and Hermione would have ended up with. So, does anyone have any thoughts on what their careers would have been as adults? Do you think Harry got his wish of becoming an auror? And who became the new headmaster of Hogwarts?