Sword Art Online: Fatal Bullet was revealed a few months back and confirmed for PS4, Xbox One, and PC. It received a trailer back then as well. For Tokyo Game Show a new trailer was premiered which shows the action players will be partaking in when entering the world of Gun Gale Online, a MMORPG that exists in the realm of Sword Art Online.
The gameplay shown in the footage confirms that a lot of combat will be done using guns, as you might have guessed from the name, but there are also instances of melee combat with a light based sword. Sword Art Online: Fatal Bullet is expected in early 2018.