http://www.ultimaterollercoaster.com/forums/roller-coasters-theme-parks/84430
This link has some detailed speculation about a supposed Apollo 13 ride...whether it's the real deal or not, I'm not sure, it seems the site that launched the original rumor has since been shut down.
From what I gather, the ride would be an indoor roller coaster ride built by Intamin, but the ride vehicles would be fully enclosed and themed to space modules. Out of the windows of these modules would be 3-D projected images which, along with the movement of the coaster track (and possibly the ride vehicle itself?), would help simulate space flight. Kinda sounds like a combination of HE and Gringotts....hmmmm
Honestly this sounds like something I could see Universal reusing in the near future.