Netmarble Korea just revealed their hidden title "Blade & Soul Revolution" up based on the popular MMORPG IP Blade & Soul. You can check out the short teaser trailer below or at the official site. Not much information has been revealed just yet, but the website tags mention that it's an MMORPG and Mobile. Expect more information to be revealed next week during G-Star 2017.
Game Site: http://bns.netmarble.com/