Weight class changes rarely come after a win. Why change what is seen as a winning formula? Moving up a weight class or down is generally seen as an attempt to revitalize a somewhat failing career. Five or so years ago, the standard was to move down in weight and have the advantage of being the bigger and stronger guy. In more recent years, with most fighters cutting as much weight as possible already, moving down is almost always physically impossible (can Jose Aldo Really make 135?). The standard affair now is to move up in weight.
UFC 244 Co-main event is a battle against weight-cuts.
