Make magazine have released a video of Maker Camp, where Walt Disney Imagineers share some behind the scenes info on the upcoming Seven Dwarfs Mine Train Coaster, currently being built in the new Fantasyland section of the Magic Kingdom. The details on the coaster can be seen by jumping to 21 minutes into the video below.
The rest of the video is stil worth watching, and provides some great info on how Disney Imagineering works!