No one seems to know exactly what Nintendo is waiting for a this point, only mentioning the Switch 2 when they have a new game showcase to clarify

Nintendo’s ongoing refusal to announce the Switch 2 has reached the point of being downright absurd. As leaks continue apace, we’re piecing together the unacknowledged console like a jigsaw puzzle, rapidly leaving Nintendo with nothing else to say but,

A third-party maker of gaming accessories created a mockup of Nintendo's next video game console, the Switch 2, and is showing off features Nintendo has yet to announce, including an optical sensor and a new controller button.