The problem is that if the BD releases are the same for the Hobbit, there will be no single film "special extended editions" that I can just add to THIS set. They will sell the theatrical version in the individual BD form and then will later release a package with all 5 films in the special extended edition form. (Notice you can't find any of the films sold invidually in the special extended editions in Blu-Ray like you can with the DVDs).
This is my guess because it will make them the most profit.
I wanted to rewatch all these extended editions on Blu-Ray before the Hobbit shows, but... :-/