I really liked the old Star Trek the Experience at the Las Vegas Hilton. If Universal did build a Star Trek Land, The Poseidon's Fury building could possibly be reused and rethemed for it. An effect similar to the the final room where walls and ceiling Disappears could be used to "beam people up" to the Enterprise. The exteriors would be the toughest part to theme. All of the iconic areas of Star Trek are interior areas: The bridge, transporter room, Quark's Bar (from DS9) etc.