I went to the Making of the U.S. Presidents panel with Tony Baster and a few other Imagineers. Tony said they would be using Lincoln's original voice, Royal Dano as Lincoln's voice and Paul Frees would return as the narrator with some his old speil as well as some new speil that was was found in the archives. They pretty much had to mix and match alot of the speil to put them together and kinda make a new speil all together, very cool. I believe he said the show will use the song Two Brothers from the American Adventures. Drawings used for the show were shown to us as well as the music and alot of Paul Free's and Royal Dano's spiels. He also said that he hates how people have to leave so abruptly after the show, so he wants people to take their time now as they show important american figures throughout it's it's history on the curtains. He also stated they would also put a fireplace in the pre-show room, i forget why the reason is. Also, they would bring back the nation's capital piece that used to be there. No mention of bringing back Walt's office as he said the fireplace is being built in that area. When the Gallery opens in october, most of the pre-show room will open as well before the actual attraction opens itself.