A Blu-ray 3D version will also be released, considering the film is also having its theatrical 3D re-release this year. Other than finally being to enjoy the classic tale is beautiful HD, there's really not much to expect from this release, although there is a chance we may see some new bonus features. If no new material is added however, I won't be too disappointed; the original DVD release from 2003 already had as many special features as there are fish in the sea.
What I find a bit odd is how this is apparently being released in early December rather than early November. Pixar's films normally hit home video during the first few days of November, and are usually accompanied by some other Pixar release. Toy Story 3 arrived on DVD and Blu-ray the same day that the Cars Toons collection did, Monsters, Inc. made its Blu-ray debut alongside Up, and so forth. The Pixar Short Films Collection - Volume 2 will surely come on the same day as Brave this year, in early November. Maybe Pixar just wanted us to have something to look forward to in the month of December too?
In case you missed it, here is the trailer that was released in October for the Blu-ray release of Nemo:
Mark your calendars - December 4!