Do you think Wilder will have a new costume during walkout or will have a robe only?
Most probably we won't see that heavy suit that he wore last time, that's the reason he lose

Lets imagine Wilder looses - will he retire after two straight losses or no?
IMO, he should continue fighting if he wants and just consider Tyson Fury his kryptonite. In boxing, "styles makes fight" so let's just assume that Fury got his numbers. We can't deny that Wilder is one of the feared champions in the heavyweight division and almost all of them have losses so nothing to be ashamed of, it's just one have to lose.