Let's gonna be clear: TKO is a market value based in entertainment, it needs media atracction. That's why Rock vs Roman will be the main event of WM 40, Cody has no chance to be the face of the industry. In fact, he will not main event a Wrestlemania ever, it is more possible to see Conor McGregor or Becky Lynch doing it before him. Or some Orton or Cena retirement match. It doesn't mean that he will not "finish the story" but it will be for the Seff's secondary smarky belt. Also that's the same for Gunther or other internet idol with zero relevance in the real modern world