Fire Emblem Warriors, the latest in Nintendo’s Warriors collaborations with Koei Tecmo, now has a release window of fall 2017. In Japan, however, it will launch on September 28th.
https://www.youtube.com/watch?v=_T3Bx1fTtvI
The new trailer covered some of the story mode, including an encounter with series favorites like Marth. Two siblings will be working together to save their kingdom.