What's the difference?
If Belfort is saying he'll fight at LHW or HW, but not MW if not for the title, obviously he won't fight another MW in another weight.
If he loses to Mousasi in another weight, when both come back to MW obviously Mousasi would have stole the #1 contendership.
Belfort will fight outside MW, fighters that won't be fighting at MW after his fight.
If Belfort is saying he'll fight at LHW or HW, but not MW if not for the title, obviously he won't fight another MW in another weight.
If he loses to Mousasi in another weight, when both come back to MW obviously Mousasi would have stole the #1 contendership.
Belfort will fight outside MW, fighters that won't be fighting at MW after his fight.