I would definitely wait for the NX to come out. I bought the supertop and I really wasn't too impressed(I returned it because the header channel was bent) so I ended up getting a factory soft top off CL. The original supertop doesn't come with a sunrider feature like the NX will. Also, the NX hardware is supposed to be almost identical to the factory top so I would wait. Geoff will probably chime in and give you some more details.
So it's been, and shall be weighed: though many are born, few are "made". Faithful Always, they shall remain, dogs to loose when war is waged.