It's the same as the old WW division. Let's take a look at some of the matchups...
Lawler vs. Hendricks
Condit vs. Lawler
Hendricks vs. Brown
Brown vs. Condit
Lawler vs. Brown
Diaz vs. Brown
Diaz vs. Hendricks
Lombard vs. Brown
Hendricks vs. Lombard
Diaz vs. Lombard
The list goes on. And that's just the strikers. Bring in the grapplers and we have...
Woodley vs Hendricks
Shields vs. Lombard
Brown vs. Woodley
Woodley vs. Lombard
Shields vs. Woodley
Then of course we have the rematches of fights that have already happened!
It's a never ending list of possible matchups...and I'm sure I fucked some of them up!
What's the one common denominator you ask???... No GSP.
All these fights could have happened before GSP retired. The 'belt' isn't everything. Way too much stock gets put into 'the belt' and who holds it. It's blinded us to the point that a fighter's talents get overlooked because they don't hold a belt or are fighting for a belt.