Exactly. From the photo's perspective you can see some lower structures supporting what are more than likely an array projection screens, and elsewhere a short projection tunnel. You complete indoor support structures from the tallest to the shortest, so it's highly unlikely that additional structures of any great size would/could be erected above these.
Obviously this photo only shows one angle of the gravity building, but it does suggest that a great deal of the attraction is going to be in unthemed darkness or rely on simple "mirrorball" starfield effects as seen on Space Mountain and Crush.