I talked to Mike at AMD today. For Mopar
All 63 to 65 Stuff all down
All Quarter Panel Skins are Done
73 to 76 Duster Fenders done
67 to 69 Barracuda quarter panel Done But still have a lot of 68's and left 69's
Then he stopped and said probably all A body stuff Done, But If the stuff that has been selling good stays selling good will stay active.
Anything that slows Down will be done and thats for all bodies. Then He said (like others have said) they alway can start stamping parts again. But I don't see that happing.
I bet you are going to see E Body stuff go away soon. No cars left to do, unless they start making bodies

The only thing new for Mopar will be B Body wider rear wheel wells.
66 and 67 B Body rear quarter panels, Trunk extension and outer wheelhouses.

Then it's back to old days custom making everything and restoring original parts. That's what really made Mopars worth so much in the first place.