Nice! This will be a great test for the future of the franchise. I'm sure Level 5 wants to capitalize on the ppoularity of the system, but considering the audience for YW in Japan is mostly children that may not be able to get a Switch this soon, it will be interesting to see.
On the other hand, this could lead to quite a few upgrading from 3DS to Switch. Hardware sales will be interesting when the game launches.
The Nintendo eShop rating Thread: http://gamrconnect.vgchartz.com/thread.php?id=237454
The Steam/GOG key gifting thread: https://gamrconnect.vgchartz.com/thread/242024/the-steamgog-key-gifting-thread/1/