The Legend of Zelda: Breath of the Wild currently has a sequel in development for the Nintendo Switch. It has been revealed that the reason why the game is receiving a sequel is that the developers had too many new ideas for the original game that couldn't be accomplished through DLC alone.
The sequel to The Legend of Zelda: Breath of the Wild was the last game announced during Nintendo's E3 2019 Direct, with a brief trailer that showed Link and Princess Zelda encountering some kind of undead menace in an underground cave, which results in Hyrule Castle being torn from the ground and rising into the air. There was no information revealed about the content of the game at the time, except that it's currently in development.
It has since been revealed that the reason why The Legend of Zelda: Breath of the Wild is receiving a sequel is because developers had too many DLC ideas for the original game, which is why they decided to make a full-fledged sequel in order to properly explore them all. Eiji Aonuma spoke to Jason Schreier of Kotaku at E3 2019 and he explained why a sequel to The Legend of Zelda: Breath of the Wild was necessary.
"When we released the DLC for Breath of the Wild, we realized that this is a great way to add more elements to the same world. But when it comes down to technical things, DLC is pretty much data—you’re adding data to a preexisting title. And so when we wanted to add bigger changes, DLC is not enough, and that’s why we thought maybe a sequel would be a good fit."
Nintendo has given a lot of focus to The Legend of Zelda series in 2019, with the release of Cadence of Hyrule, the announcement of a remake of The Legend of Zelda: Link's Awakening, the addition of VR to The Legend of Zelda: Breath of the Wild, and even a rumored game by Monolith Soft in development. It's not as if the series is lacking for new installments, but it seems as if the developers of the sequel have enough fresh ideas to justify the release of a true sequel to The Legend of Zelda: Breath of the Wild.
There are still a lot of questions regarding the sequel to The Legend of Zelda: Breath of the Wild, such as whether Princess Zelda will be playable this time around. Aonuma has revealed that the game will use the same map of Hyrule from the original The Legend of Zelda: Breath of the Wild, with the obvious change of Hyrule Castle being airborne. If the game is using the same map from the first game, then what elements will the developers be using to differentiate the two games?