No, it's unlikely. His style is not age friendly as he relies on speed, footwork and stamina. He doesn't cherry-pick his opponents either. Also, it's not like Usyk dominates every opponent - both Fury and Joshua were hard-fought battles. He does not express any desire of retiring and doesn't give an impression of someone who's afraid of losing. So the combination of these factors make it likely that he's going to lose one day. But in my books, Usyk is entitled to lose to both Harold Sconiers and Dustin Nichols now and this would take away nothing from his legacy.
Hear Hear. I'd like to see him retire as of now. He's got absolutely nowt else to prove, BUT, there's still a shed load of dosh waiting in the winds. And, it's not just Usyk himself that appreciates the wealth, is it?. His management and team will be more than up for a few more quid, won't they?.