Check it out:
https://www.reddit.com/r/NintendoNX/comments/5330mx/leak_release_date_of_botw_and_nx_accidentally/
Guardian: http://www.nintendo.co.uk/amiibo-/amiibo-details/Guardian-1125631.html
Horseback: http://www.nintendo.co.uk/amiibo-/amiibo-details/Link-Rider--1125630.html
Archer: http://www.nintendo.co.uk/amiibo-/amiibo-details/Link-Archer--1125629.html
All LEGIT leaks for once. They are just the Amiibo, but I would imagine they want to release the system the same date. Get back on the hype train people!
When you load up the store, look down near the bottom of the page. There are Amiibo figures that appear there. They are random, if you refresh the page a few times you will see a BoTW figure appear there along with the release date.
NNID: Dongo8 XBL Gamertag: Dongos Revenge