#1 The match can only end when either Roman Reigns or Jey Uso proclaims that the other is the Tribal Chief
Shoutout to Sportskeeda's editor Alan Jose John for this point. In his opinion, the highest of stakes could be symbolic, as Roman Reigns and Jey Uso contest in an 'I Quit' match inside/at Hell in a Cell, which only ends with one man saying that the other is indeed The Tribal Chief. Even though it doesn't seem like the stakes are very high for this example, look at how Roman Reigns and Jey Uso have built this storyline up, and how integral the position of a Tribal Chief, is to the entire tale. So yes, it is all too plausible that this match will end with Roman Reigns being proclaimed as the Tribal Chief by Jey Uso.
Whether or not you're a fan of this storyline, one has to admit that Roman Reigns and Jey Uso have made WWE SmackDown seem like the A-show, after years of playing second fiddle to RAW on Monday Nights.