I am not seeing him winning in the 3rd fight, not even split decision if it goes to 12 rounds.
If Wilder is smart he will fight others and then build up his resume once again and then call out Fury again, but i am also not expecting anything different if Fury and Wilder are to fight again.
They have already plan this that is why there was a "rematch clause", and if Wilder will fight another boxer and he wins easily, what would change, people would still think that he is afraid to fight Fury again and has not use his change to prove himself again that he can beat Fury.
I think after the this 3rd fight and still he lose, he can try to fight another boxer, but what people likes to see now is the Trilogy, they are not even talking about AJ as Fury and Wilder is the big market in heavy weight boxing now.