The first one is Behind the Steam: A Railroad Experience which allows you to get up close to the workings of the steam trains.
The second new tour is Behind the Screams: A Rollarcoaster Experience. The tour starts off with the Loch Ness Monster where you get to see the mechanics of the coaster before being able to ride it. The next stop is the Griffon where you are able to ride the elevator to the top of the coaster and spend several minutes up there. a photographer will take pictures of your time up there.
You will get exclusive ride time on both the Griffon & Alpengeist and front of the line passes for Apollo's Chariot and the Big Bad Wolf.
Here is a link to the info on their site.