Dragon Warriors professions focus on a distinct role - a commitment to a path without which the character would make no sense. Mere skills, which can be learned by anyone, should not define a profession - instead, professional distinctions reflect innate social, magical, or opportunistic circumstances that will shape (or haunt) the character's entire life.
Class-based systems went out of fashion in RPGs because implementations of them became confusing and non-sensical, much like simply extending Dragon Warriors with more and more professions would be.
Instead, I wanted to replace the canon professions with those same evocative roles I love but without the nonsensical elements I don't.
Profession packs will be available from early 2019.