Mayweather will follow the Roy Jones blueprint, his expensive lifestyle outside of the ring will force him like Roy to take fights when hes well past his best, as his marketibillity dies down, Floyd will have to take riskier opponents at the same time as his reflexes slow whether he ends up as bad as Roy who knows, but one things for sure his O will go, maybe he will realise it and retire after the first loss, but until he retires his lifestyle outside of the ring he will still need to fight once to twice a year, Roy was unbeatable once and avoided everyone just beating up on no chance fighters on HBO for a decade, in the end as his skills and reflexes were deserting him he was forced to fight the Calzagies and Tarvers at their primes or close to resulting in him losing to fighters that you could argue he would have beaten easily in his prime.