Discussion point: who are the "new" talents that, in the next year, would comprise a list of wrestlers that Roman Reigns could lose the championship to and cement as new top-tier stars? Don't answer this with "lol Cena" "lol Orton" "lol nobody" nonsense.
The question is a broader one, because Reigns can get replaced with Rollins or Ambrose or Cena or Orton as the title holder. At this point, the Shield trio are established stars. Even though they're relatively new on the scene.
Who on the roster is a young, main event, championship level ready talent within a year's time?
The aforementioned Big E, Rusev, AJ (not young but..) are the names that spring to my mind.
I can't see Owens happening. The only other person that I would say is Balor but my boy needs to get some of his NJPW mojo back before I'd fully commit to that.