Just thought I found it very interesting that during my lunch with an imagineer he happened to mention how quickly things as Disney parks need to be changed and he brought up the fact that "anyday we could choose to turn something like Mission: Space to a mission deep underwater." and I wondered if he was hinting on something we may see or if this was just an example. Even so, the title "Mission: Space" due to the ":" seems it could be changed. Although I do think it won't be coming soon since the attraction has only been opened for about 4 years. But I do see it as a possibility