Disney California Adventure has added a new post-show to the World of Color, quickly named by fans as a TRONcore. The segment serves as a preview for the new TRON: Legacy movie that will debut December 17th. I love how the normal World of Color ending happens then a 'glitch' occurs and the new segment starts. The use of lasers and projections on California Screamin' and the Fun Wheel's lights are also smart... the TRONcore is very well put together.
Disney has said they plan on doing special tags like this to World of Color, as well as being able to feature different segments in the main show. This is only the beginning of that, I'm sure.