I Saw some more classes and skills in the game code, but i'ts not like they will be accesible ,BTW you can collect herb for ccoin, just go to the guild and grab herb collecting side quest on the board. You can go either to the south Woodlands or graveyard,graveyard is superior in coins and herb i think.but i'ts basically depends of your current level.
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Well noted! Aside from the 3 main, some playable characters join the team for some quests as you probably already noticed. The plan is for there to be a new one added in a major side quest as well, and maybe for everyone to be recruitable at a whim in the post game. Most of the classes you found in the files are probably the default ones (from 0001 swordsman to 0008 bandit), which I kept as a guide for balancing my custom ones. And there're also the class changes as part of the story (we only had one so far tho).