This market resolves as YES if, before January 1, 2030, Nintendo announces a sequel to Tears of the Kingdom. Otherwise, this market resolves as NO on January 1, 2030.
"A sequel to Tears of the Kingdom" doesn't need to be a new 3D Zelda game. It could include, but is not limited to:
A Hyrule Warriors title that is set after the events of Tears of the Kingdom
Another Zelda spinoff set after the events of Tears of the Kingdom
Another type of media that has a story set after the events of Tears of the Kingdom; e.g. a manga, an anime, an animated (or live-action) film, a live-action TV series, an official webcomic, etc.
The sequel does not need to be an immediate sequel, but it should be set within the lifetime of at least a few of the major characters from Tears of the Kingdom, or have another direct connection. A game or other story set in the same Hyrule a few hundred years after TOTK, featuring none of the characters from BOTW/TOTK, wouldn't count. The exception to this is if Nintendo explicitly markets the game as a "sequel to Tears of the Kingdom."
The sequel only needs to be announced - if Nintendo announces that a sequel will be released at some point in the 2030s, that's sufficient for a YES resolution.
If Nintendo ceases to exist, if they announce that there will be no more Zelda media, or something equally unlikely and weird happens, this market still resolves as NO rather than N/A.