I thought I had heard that they had done away with Mickey's Luau and now simply have the traditional Polynesian Luau. That is really a wonderful show - we try to see it everytime we visit.
The unofficial guides are usually wrong. I read an unofficial guide that said that Kilimanjaro Safari was on a track in a building with fake animals. My sister and I had never laughed so hard!
Mickey's Tropical Luau was discontinued a few years ago, and has since been replaced with a more traditional Polynesian Luau. I was there once. Great entertainment...unlike the food...