A superheavyweight class would only make the heavyweights the new cruiserweights. Besides Jess Willard, Primo Carnera, Tye Fields, Julius Long.....there are a loooooong list of guys who were big and didn't do SHIT in the division and Marciano, Charles, Walcott, Tyson, Dempsey, Moore, etc that were small and did a bunch in the division