As Daum is preparing for the commercial launch of Black Desert Online in NA and EU, the team is taking some time answering questions from the community. Most questions are focusing on future plan and possibility of getting particular new content. The team doesn't have big plans for the game at this moment, though they do consider adding some.
For new classes, specifically male version of Ranger, Sorceress, Valkyrie, it's unlikely that the team will make them because "creating the same class, but a different gender, takes almost the same amount of resources as creating a completely new class." That's why you have Valkyrie and Warrior, two classes that share some similarities.
New race Shai is still in consideration, along with some others that "will be either from an existing in-game race, or something that we think might be fun for players". Which new race to develop first is to be decided, Daum says.
Shai race
There are other questions regarding crafting, new regions, instances, PvP, etc. You can read the full interview at the forum.