The release date of "Zelda: Breath of the Wild Amiibo" appeared on the official website of Nintendo UK. According to Gamespot, Nintendo's European websites may have possible leaked the release date of "The Legend of Zelda: Breath of the Wild Amiibo".
First spotted by Reddit, they validated and proved that the UK website had shown the March 4 release date under "Discover more Amiibo" section of the webpage. The exposure of Amiibo release date could also possibly suggest that the release date of "Breath of the Wild" comes prior or on the exact, same day as March 4. However, no Amiibo has ever released prior to its supported game. Also, this does not confirm the said release date.
Apart from that, the leak could also mean that this is when the NX releases. However, it is not officially announced yet that both NX version of the "Breath of the Wild" and the Wii U will be launched on the same day. Based on the report of Gamespot, they have tried reaching Nintendo to get their statement regarding the issue and will provide updates as soon as they hear back from them.
It is essential to note that March 4, 2017, falls on a Saturday, and the extensive range of Amiibo figures came out on Fridays. In addition, Saturday is also considered as an irregular day when it comes to game launch. Nintendo's Wii U, however, did release on a Sunday, November 18.
Earlier this year, Nintendo has made widely known to the public that the NX is set to launch in March 2017 along with "Breath of the Wild" coming in the same year. It was even delayed for a couple of times and also appeared as the sole playable Nintendo game during the ER 2016. "Zelda: Breath of the Wild Amiibo" figures were unveiled in June. Watch video for more details: