Not to be missed out from the Nintendo Spotlight: E3 2017 video, Fire Emblem Warriors for Nintendo Switch and New Nintendo 3DS also had a good showing and you can see it’s showing right here:
For Japan, Fire Emblem Warriors will release on the 28th of September, as for the west, the best we have for a release is Fall 2017, but at least we have this fact sheet as well:
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Heroes from across the Fire Emblem universe collide!:
Clash with legions of soldiers and fierce monsters as Marth, Xander, Corrin, and other Fire Emblem heroes unleashing over-the-top-powerful Dynasty Warriors-style moves. Take direct control of known and original Fire Emblem characters, issue them strategic commands in the midst of battle, pair up heroes to unleash stunning attacks, and more. Unlock new playable heroes, each with their own unique moves, special attacks, weapon types, and voiced dialogue in this large-scale action game from the Hyrule Warriors team.
Play and experience a new kingdom with original characters colliding with heroes from across the Fire Emblem universe.
Battle as fan-favorite Fire Emblem heroes, like Chrom, Corrin, Ryoma, Marth, Xander and more, each with unique moves, special attacks, weapon types, and voiced dialougue.
Pair up two hero characters as a single unit that can unleash devastating combos and even switch between these heroes mid-attack.
With the classic weapons triangle, tactically choose and switch between Fire Emblem heroes to gain the advantage in combat against countless enemies.
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Source: Nintendo (YouTube)