I think I will always call the 66-77s Early broncos, Classic broncos , or Original bronco. Though I have called the Ebs the "first gen" bronco to non bronco people that are clueless and don't know the difference between a bronco and a jeep. They think that if it is 2 doors and 4 wheel drive its a jeep.!%)
The 2020 will be the new bronco.
The 78-96 are full size broncos
But that is just me. As we all know there are a lot of big and little differences between all the years!