Devs - Aurora Studios
Chinese publisher - Tencent
Current state - 3rd CBT
There is not so much of info on this game, so far from what I got this is something similar to Blade & Soul but Chinese and combined with Swordsman online, even though that from the first look it looks like it is something similar to BDO, but it isn't.
Here are few videos to start with:
And best review with details that can be found on whole net is over here: http://www.playt1g.com/moonlight-blade-cbt3-review/
You can also check their facebook page: https://www.facebook.com/moonlightbladeonline