They're in the announcement trailer. CotN has Danganronpa and Shiren the Wanderer stuff in it because of them.Was that known? Seems bizzare that Nintendo wouldn't publish a Zelda game in Japan!
Spring ends in mid-June. That's how ARMS was a spring release coming out at the end of E3.
It was until Nintendo listed Mario Maker 2's June 28th as Spring in their last investor presentation.