its official that SAO MD is closing, please do your best with your last runs on this game before it close. i wish you good luck on getting on the leaderboard before it closes forever.

little edit: there will be a ofline version of the game where you can play the main quest's but it isn't going to be for download, only if you have the game before it is closed if you ever wish to run it, don't delete the app or download it while you have the chance!