AMD versus Goodmark quarter panel skins.
I'm sure the floor pans, trunk floors, and transition pans, along with inner and outer wheel houses and trunk drops for darts and dusters will continue to be made all the floor pieces, and inner wheel houses go from 67-76 the duster outer wheel housrs go from 67-76 duster trunk drops 70-76, and dart outer wheel houses 67-76. Ditto for outer rockers 67-76.
Dart trunk drops 67-69 and 70-76 tho there less total theres still quite a bit of darts produced during these 2 changes that its worth it for them to repop all this stuff. The parts that fit the most years and applications they will continue to repop. The dies are all made up to stamp the parts, they will try to recoup as much out of the costs as possible. Plus as these cars get more valuable, and they will, people will start putting together stripped out basket cases like they do 2ith B&E bodies now. Its the natural progression of the hobby.