Updated 10/20/2017
Project AEYKO: English Patch for Black Desert Online Japan
https://drive.google.com/open?id=0B5hEIHLI7bNXZVVoS1pmYVZMbDg
Password: aeykoaug10
Installation Instructions
Download languagedata_jp.zip
Unzip
Make a backup copy of your C:\GameOn\BlackDesert_live\ads\languagedata_jp.loc file incase you want to revert.
Move the extracted file into C:\GameOn\BlackDesert_live\ads folder and make sure to overwrite it. Done!!