What Sports Nerd said. JDS has pretty much fought every high level HW except Overeem and Brock. I mean he hasn't dominated the entire division with maybe guys like Nog able to earn a shot at some point if he continues down the path he''s on (Seems like it'd be impossible, but considering how he lost to Mir and how he's 2KOs apart, a win over Werdum might make him a contender if JDS is still there). Not sure if the two'd fight but with Nog, and maybe Cormier out of the picture, who would be left for JDS to fight out of Brock (who pulled out of their fight and retired soon after) or Overeem (who was banned when their fight was arranged).
I'm probably the best at keeping threads on topic of all time.