Summary:
Looking for clues on the HBP on JKR's site I stumbled apon a picture. It has a caption at the bottom witch reads "Chapter 7". This could possibly be the chapter 7 title.

Article:

If you click on Fan sites (the little key) On JKR's site it you will come to a part with a trophy's. On either side of the Trophy that says "The Harry Potter Lexicon" There are two little medals. These two metals are next to their little case. If you pick up those circular coin medal looking things and place them both in their case a screen will pop up.

Its a kind of award looking thing that says since you are exploring the site you get a hint. This is what hint I got. If you click on to get the hint this is what I got:






I dont know who the last person is in the end. However, maybe this is a new character that maybe JKR introduces and maybe perhaps could be the HBP? Who knows.

Hope you find this news interesting, oh and I did find this one her site.