In an interview with Collider.com, director Peter Jackson gave some insight into the upcoming Blu-ray releases of 'The Lord of the Rings'. He was able to not only confirm what we already knew, that the upcoming Blu-ray release of 'The Lord of the Rings: The Motion Picture Trilogy' would present the theatrical versions of the films, but also that the Extended Editions of the films would be available on Blu-ray next year.
According to Jackson, the studio has already spoken to him about developing additional extra content for the 'The Lord of the Rings: Extended Edition Trilogy' Blu-ray release. This new content would presumably be added to the content available on the existing 12-disc DVD box set for the Blu-ray release.
It was previously believed that the Extended Edition Blu-ray release would be held back until the theatrical release of 'The Hobbit', but Jackson's remarks seem to indicated otherwise. Time will tell, but to get a release of this magnitude completed in less than a year (assuming they would start after the November 3rd release of 'The Lord of the Rings: The Motion Picture Trilogy') may be a little ambitious.