David Yates Confirmed as HBP Director

A new interview conducted by SciFi Magazine quotes Order of the Phoenix Director David Yates confirming that he will direct the Half-Blood Prince film:

"I am doing Half-Blood Prince, and I'm doing it because I love the world, I love the characters," the BAFTA-winning director said in an interview. "I think I have more business with this world and these characters."
We're still waiting for official word from Warner Brothers. David has been rumored for quite some time to be directing the sixth film.