Not exactly.
A Roboto that looks identical to the original but with a removable left hand and corrected shoulders isn't a variant. Battle Armor He-Man and King Grayskull are variants in this line ("A-list variants" was the term used by Toyguru).
Magenta Faker, unflocked Moss Man, and flocked Panther would be refreshers and not the same as Battle Armor Skeletor.