Wolfenstein: Youngblood has been confirmed for the PS4, Xbox One, and PC. However, there has not been any word so far about it coming to the Nintendo Switch. Well, possibly until now.
As noted by GameSpot, Bethesda marketing executive Pete Hines stated at PAX Aus that “the next Wolfenstein game” is also coming to the Switch. There is a little bit of a caveat though. On top of Wolfenstein: Youngblood, Bethesda has already stated that Wolfenstein III is definitely on the way. No platforms have been officially announced yet for that title.
Right now, all we are left with is a guessing game on which title he was talking about. It could be only one of them. Since Bethesda has stated that they make an effort to bring all of their newly developed games to the Switch if it is feasible, it could possibly be both of the games. The unreleased Doom Eternal will be available on launch day for the hybrid console, so it is definitely possible for them to bring both of them depending on the scope of the games.
Wolfenstein: Youngblood is set to release sometime in 2019 and is currently only officially announced to be coming to the PS4, Xbox One, and PC.