To start the trials, you will need the Master Trial DLC. After that, talk to Great Deku Tree to start the Zelda BOTW Trial of the Sword. This tree is in the Korok Forest. The Great Deku Tree will ...

However, if you were hoping for additional DLC content the way Breath of the ... that whatever the new Zelda game is probably has to be developed with that in mind. Still, this is different ...