Oh, dear, methinks Albus and Barty, Jr. may soon find many reasons to regret Harry's position as a champion; I rather suspect it's going to be a fascinating time for Harry and an absurdly annoying and hectic time for Albus and "Moody". It obviously 'twill not be good to be Draco or his minions and, if Ron keeps the nonsense up, Ron and his associates. On the other hand, it will be a great example of honoring the letter of the law while ignoring the intent; if the purebloods can do it, then there's no reason Harry can't do the same and cite numerous precedents. It's looking to be a rather fun year.
On a side note, I love the way Harry & Hermione's relationship is obviously growing. I'm cheering for a truly harmonius growth myself; though others joining them could be fun, too.