Square Enix revealed today that they will be discontinuing service for Rise of Mana on March 31st this year. The decision was made because the team felt like it had now become difficult to create new content that will satisfy players, so they’ve decided to outright terminate services for the Japan-only title.
It’s also worth noting that the company stated that they are investigating possible ways to make the game available to play after they shut the service down, just not as a F2P game and more of a game you will likely have to purchase in full.
Rise of Mana arrived on iOS on March 6th in 2014, Android devices on June 6th and then later received a PS Vita version on May 14th, 2015 in Japan. The game was also trademarked in Europe and North America a while back, though it looks like a localization will never see the light of day.