I have read a lot of forumns for the past few days and i have summed up the hbp will be....
1. McClaggan
2. Dumbeldore (Either Albus or Aberforth)
3. Hagrid
4. Godric (If only he is not dead)
Check jkrs site and c if she put new clues....The most chance it would be is a godric person...not any other group...check the door and c what clue she put...it seems like a lion animugus or something like dat