During the Nintendo Switch Presentation 2017 livestream event, Nintendo revealed the launch date of their new Nintendo Switch (3rd March, 2017) and well as a number of news including a new trailer for The Legends of Zelda: Breath of the Wild which will be released on the same day as the Nintendo Switch.
The game was first announced in 2014, and was scheduled for release in 2015. However, the game was pushed back to 2016, and ultimately to 2017. The Legends of Zelda: Breath of the Wild will be available for Wii U and the new Nintendo Switch.