Rhoden is almost 40 years old...he's not going to put on 15lbs of muscle and get leaner....Just not gonna happen.
Dexter did at the same age, well not 15lb but 10lb. Look you guys do not understand the power of momentum, in bodybuilding momentum, drive and hunger are everything and that dictates the future and no one has more of that on the planet then Rhoden obviously, going from an absolute nobody to third in the world then winning shows, then deciding to skip the Arnold as he would have been the favorite should tell us he is gunning for the Olympia with everything he's got, also you don't know what limited funds can do to a bodybuilder so having the financial freedom now could make a difference.
It is virtually impossible with all this going for him not to improve, I predict the most dramatic transformation out of all the pros, there is no reason to think his age is causing a decline, of course in few years yes but not now.