RopeofSilicon was the first to notice a listing in the latest MPAA Rating Bulletin for Harry Potter and the Sorcerers Stone (Extended Edition) which earned the same PG rating, for the same reasons as te theatrical release (some scary moments and mild language).
Ropes contacted Warner Bros Home Video about the mention, and they confirmed that Although weve not announced [it yet], all Harry Potter films are being planned to get special upcoming releases!
Will the new extended editions be released exclusively on Blu-Ray? DVD? Will the get a theatrical rerelease? We have no idea as no further details were mentioned.
And how much longer can we expect from an extended edition? Director Chris Columbus added 7 minutes of deleted scenes back into the movie for its May 2004 ABC broadcast premiere. The original two-disc DVD release of the film features seven deleted scenes, only accessible by searching for the Sorcerers Stone, which has been described by digitalbits as a long, involved process that means getting a wand from one virtual location on the disc, and then going to another location and accomplishing a number of interactive challenges. And from what I can tell, the deleted scenes didnt add up to much more than 7 minutes. So I really wonder if the Extended Edition will be not much more than a marketing gimmick.
Rumors of a home-video released extended editions have been floating around the Harry Potter fan community for a couple years now. A post from December 2007 on LeakyLounge.com claimed that Warner Bros was planning to release extended versions of the Potter films, starting with Sorcerers Stone in Mid-2008 which was going to run an extra 30 minutes in length. The rumor claimed that each film would be released in a 4-disc box set containing the original version, extended edition and two discs worth of special features.
Update: /Film reader Mark S points out that the Digital Bits reported that Ultimate Collectors Edition Blu-rays for the first two films are now up for preorder on Amazon. It is very possible that the extended cuts will be included on these yet-to-be-officially-announced releases.
http://www.slashfilm.com/2009/08/12/harry-potter-movies-to-get-rereleased-in-extended-editions/