Mobile Game Fire Emblem Heroes is a gift that keeps on giving as Intelligent Systems & Nintendo are gearing up for another update. Maintenance in preparation for the update begins May 8th and will last a couple of hours (approximately). The Arena session will also be cut a day short in favour of maintenance as not to lose progress or rewards when the new update becomes available. You can see the in-game notification below. 
Source: Fire Emblem Heroes (In-Game Notification)
I am Chief Administrator for Miketendo64.com A news & reviews website for Nintendo related articles and merchandise. An intermediate gamer with over 20 years of experience spanning 4 decades and 4 generations of Nintendo Games Consoles From the NES up to the Wii U. I also manage our YouTube Channel where I post videos frequently ranging from Let's Plays, Unboxings, Let's Talk Abouts, Our Wii U Lv1 Playthrough Series and the Super Mario Maker Bros Show! and a whole lot more, we even have our own Miketendo64 Directs!
