User blog comment:DerpyDoodle/Wolf/@comment-25129545-20140920201145/@comment-10733804-20140924014525

"A clone character is a common inclusion in the Super Smash Bros. series, and many other fighting games as well. It describes two or more characters that have nearly identical movesets with slight variations in the attacks. From the developer's perspective, a given character's model can be used as a base template from which to build another, and it is usually evident which one is the "original" and which is the clone. Most clones are from the same series of games."
 * Smashpedia's article on clone characters as of 11:13 PM on September 23 2014.

By definition, Wolf is a clone. I think that Wolf should have been kept with Falco removed but really the Star Fox characters need to be more unique in the next game.