Cain isn't the only inactive 'blockage' giving the HW division constipation. JDS has only had one fight since losing to Cain the second time, and barely squeaked by Stipe. He's been as inactive as Cain and hasn't looked good since dispatching Hunt a few years ago. He should need at least another win to get a shot.
Who's next? Arlovski? He's in the same ballpark as Mir in that they're shopworn veterans who've been at the fortunate end of good matchups and lucky punches for a fleeting resurgence. There's no way I'm sold on the idea of him getting a shot without at least dispatching of Stipe/JDS/Reem or even Hunt first.
What else do we have? Stipe is not far removed from his loss to JDS and lost to Struve not long before that. Brown just dropped down the pecking order but is still ahead of Rothwell, and Overeem has managed to climb back from the brink of getting cut to claim some sort of relevancy again.
There are literally no contenders in the division. HW is a small pool of old, inactive veterans who can't string together even a hint of consistency. As soon as someone breaks the top 5, they get dispatched by someone they should have beat.
At least with the Cain rematch we can see if the altitude thing really was the reason he looked so shithouse, otherwise it proves fighters were respecting the aggression of Cain too much this whole time and elevates Werdum. Either way something gets cleared up.