Eiji Aonuma, producer of the Legend of Zelda series has confirmed that there are no plans to add additional content to Tears of the Kingdom. This information comes to us from an interview with Famitsu, translation below.

Quote From Translated Interview

I see. Now then, I'd like to hear about your next work… I think there are various possibilities, whether it's a further sequel or a new stage.

Fujibayashi I don't know if it will be the next work, but I'm thinking about what the "next fun experience" will be. I can only say that I do not know at the moment what form it will take.

Aonuma : There are no plans to release additional content this time, but that's because I feel like I've done everything I can to create games in that world. In the first place, the reason why we chose this time as a sequel to the previous game is because we thought there would be value in experiencing a new kind of play in that place in Hyrule. Then, if such a reason is newly born, it may return to the same world again. Whether it's a sequel or a new work, I think it will be a completely new way to play, so I'd be happy if you could look forward to it.

How do you feel about no DLC being planned for the potential Game of the Year?