Geomancer

[Cidel]

Geomancer's presentation in XIV heavily plays-up their feng shui theme and other small stylistic influences like taoism and qi. If the devs decided to actually create a playable Geomancer, I'd be willing to bet it'd pull more from that theme than simply terrain and topography. There really isn't any reason to get hung-up on them supposedly using the same primary elements as Conjurer does, because I'd suspect the visuals and presentation would differ anyway (also helps that White mage seems to specialize in light/holy-based effects for now).

What is going to set it apart from existing healers (or casters), like anything else would probably fall squarely on some gimmick+new type of job gauge. They seem to want a degree of homogenization in bread-and-butter/utility spells, but beyond that I'd imagine how they design the rest of the job around a feasible (and preferably new) gimmick and resources matters more than "ew, it's using earth, wind and water too." For example, what if the Geomancer's job gauge was a triple trigram-looking chart where performing certain actions/spells filled a certain portion of the trigram (similar to Red mage's gauge), which you could expend for varying effects like a Ninja's mudra system depending on what corners of the gauge were "filled." Or the part of the trigram gauge fills equivalent to what direction the Geomancer was facing when they use select abilities or spells. Heck, give them a ground field AoE ability that varies in effect based on what cardinal direction the Geomancer faces when placing it (Regen? Buff? Mitigation? MP Refresh?) Job mechanics like those would thematically match a job with a feng shui theme.