Kevin,
If they really are going to do away with the car, which would suck for almost anybody with an Older NACRA, I would start buying the endcaps, screws and bearings as spares so you can rebuild your own. These are what typically break or wear out anyway, I have never seen the main body of the cars break it has usually been the bearings wearing out or the cap breaking from too many hard jibes mixed with mainsheet lines that are too long.
Anyway I am sure that folks with this will not totally be left in the cold since there are too many people using that car.
Have a Good One
Doug W