JKR talks of a great deal of hardship that Harry is going to have to face in book six. I wonder what sort of hardship is going to have to face besides losing someone else he cares for.
Could it be that he'll find himself in a position of leadership in the school as say headboy perhaps? And maybe some sort of extremely difficult and painful duty will fall to him as headboy?
This is all speculation and conjecture I know but I think that speculation and conjecture is fun and would love to see some of the same from others.