At this point, Khan is out of the picture, in regards to holding titles at 140. As of now, Peterson is the WBA and IBF champ, and I dont see any bigger fights out there for him, other than a Bradley rematch. Let's picture this...Lamont rematches Bradley (which Im sure Bradley wont hesitate to do) who is still the WBO champ, and either of them wins (really doesn't matter).
So now, we would be looking at a guy that holds the IBF, WBA, and WBO titles. This only leaves one more belt up for grabs, which is the WBC title that Morlaes holds. With that title being won, we would finally have an undisputed champ at 140...something that we've been waiting on for years. From what I understand, the winner of all these titles would be considered "undisputed" (though the WBO belt has been questioned). These alphabet belts can become confusing, but let's look at it from the standpoint of having all of the belts. Help me out if you know something that I dont...wouldn't mind knowing everybody's take on these belts.
Peterson vs Bradley...winner takes on the winner of Morales vs Garcia...to become the undisputed champ in the division.