Unless they get off of their, every class and job has to have the same amount of abilities, I could see them introducing blue mage and beastmaster off of the same class, the beastmaster's 5 extra skills being two or three summons, then something like spur and a pet heal, and then blue mage getting 5 monster skills learned from quests. I also think they plan at least for the first set of jobs, to make the two jobs have different main stats, so not sure how they would work these two, unless they classify the blue mage monster skills as int based or something. It's just with the way they choose to go about balancing stuff in this game, and the kindergarten stat system, it's going to be difficult for them to work in more complex jobs like blue mage, red mage, and things like that.