The 'Bronze Bomber' has not commented as to whether he will continue to box after two defeats to Tyson Fury.
Wilder - an outsider for his trilogy bout against Fury - nearly defeated him in their third bout last year after flooring him twice in round four.
He was unable to pull the trigger in the fifth though and eventually ran out of steam before getting knocked out in round 11.
With the rivalry now put to bed, question marks have been raised as to who he will face next, and according to his former opponent Bermane Stiverne, there is only one name remaining.
"I think the only fight that's left for him to do moneywise would be Joshua," Stiverne told Planet Sport.
"Other than that, I don't think there's any other fight that would be relevant for him. Also that depends on how Joshua comes back, if he comes back and beats Usyk then it's worth it then if not then it's not worth it.
"I take that back, it would be worth it cause both men are coming from a loss so it would be worth it to watch it.
"Other than that I don't see anyone. In my book, Wilder doesn't have anything to prove to anybody. Ever since he got the title from me, he did a great job holding onto the belt for five or six years and today is Tyson Fury's turn."