Work has already started on Harry Potter and the Half-Blood Prince at Prime Focus London, with the company's Hollywood and India facilities chipping in as well. Prime Focus was the company behind the rushed 3D conversion of Warner Bros.' Clash of the Titans, although it was said that they are taking their time with these new Potter conversions.
Although work has been halted on Harry Potter and the Deathly Hallows: Part I, it is said that they could complete the conversion at a later date for 3D Blu-ray. It wasn't clear when these movies would be released on 3D Blu-ray, and Warner Bros. wouldn't say if these conversions could lead to theatrical 3D re-releases.
Director David Yates is currently in post-production on Harry Potter and the Deathly Hallows: Part II. He will not focus on the 3D BD titles until sometime in 2011. However, it was said that the Prime Focus process is flexible enough to allow the director to view certain shots during the 3D conversion process.