Fire Emblem Heroes has been out for over four months now, but the app is still getting regular updates from Nintendo. While it hasn’t been officially announced yet, those poking around in the game have uncovered art from an upcoming event. Titled Fire Emblem Heroes: Ylissean Summer, it will likely be revealed in the coming weeks. Nintendo should really be more careful as the same thing happened with an unused Christmas event. All of the character art they discovered is really creative, so check it out below.