“Waluigi still has his foreskin,” said Kimishima. “You won’t ever see it but it’s there. We do not know why he remains uncircumcised, however. It might be a religious thing, it might not. But, yes, Nintendo players can expect some exciting downloadable content for The Legend of Zelda: Breath of the Wild.”
These facts are now canon.
Oh cool new BotW DLC too