If it's BTTF, I would grudgingly accept a re-use of the ride system and 360 tunnel. Its previous incarnation was a simulator, and assuming a new version was intelligently-implemented, I think it would be an unquestionable step up from Supercharged.
If it's not BTTF, it should be a completely new (to the space) ride concept. Ideally, a lavish dark ride of some kind.