Kloves returns for DH screenplay.

http://weblogs.baltimoresun.com/entertainment/critics/blog/2008/03/harry_potter_and_the_deathly_h.html

the decision to split the book into two films, and says they had been considering to do this originally for Harry Potter and the Goblet of Fire . In an email to the paper Steve Kloves says “Years ago,” he writes, “we briefly — and seriously — considered doing Goblet of Fire as two films. So this concept is not altogether new.”

Steve Kloves, who is the screenwriter for the upcoming Harry Potter and the Half-Blood Prince, and will pen the scripts for both of the “Deathly Hallows” movies

“Harry Potter and the Deathly Hallows” will be made as two films. Starring Dan Radcliffe, Rupert Grint and Emma Watson and under the direction of David Yates, Harry Potter and the Deathly Hallows: Part One will be released in theaters “holiday” 2010, with Part Two due May or Summer of 2011. The sixth film, Harry Potter and the Half-Blood Prince, is currently in production in England, with a release date set for November 21, 2008.