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

Throughout most of last year, it was business as usual in Switch 2 leak land. A few details emerged in reports sourced from behind-closed-doors meetings with Nintendo’s partners, and a pretty complete, if hazy, picture of the console’s form and features was built up: the magnetic Joy-Cons, the AI-assisted upscaling tech, the backward compatibility.