They were pretty clear about new classes/jobs being implemented around the first Expansion pack. We only have Arcanist now for example because we needed another DoM and the framework was already incorporated into 1.0.

Unless you see it in action, it's not easy to say something is a new job/class just by appearance, especially since weapon = class in ARR. That image is pretty much the "title card" of FFXIV ARR when you think about it considering the major promotion they did to reveal it lol.