Funnily enough....
On Sir Ian McKellens' website, he does indeed mention an abbolutely final version of the DVD.
Here is the quote from his web site www.mckellen.com
One of my favourite moments in The Fellowship of the Ring was Gandalf's conjuring tricks for the hobbit kids at Bilbo's birthday party. What tricks? You will have to wait I expect until the outtakes resurface in the absolutely final DVD version.

One thing to note about the 4 disc set, the sound track is now in DTS 6.1 as well as 5.1. That is what blew Pearl Harbor onto 2 9G disks as well. Don't forget all that commentary as well.
My copy has just arrived and I will be watching it this weekend.