They just announced that the CBT2 will be on Feb 18th, and with the announcement released a free character creator. You can download it and fool around making characters. If you make one you like, you'll be able to import it into the game when it's released.
Character creator can be found here, free for anyone to try:
https://www.blackdesertonline.com/events/ccm/?trcode=PRCCM1
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Also you will probably need to sign up for an account to use it, but that's free.
http://mmorpg.com/gamelist.cfm/game/944/view/news/read/37953/Black-Desert-Online-Second-CBT-Dated-New-Standalone-Character-Creator.html
¯\_(ツ)_/¯