Geomancer

[SeikishiYuuki]

Consider this: Starting from 72, WHM's elemental spells were changed to light spells, it's likely a part of the reason this talk of healer GEO is even hapening, so so it already is happening.

I mean sure sure, it is distinctly more likely Astro will lose noct sect, its already on life support but wholly less useful than Diurnal and you could take off noct sect and the class would be completely viable and you wouldn't have to even change any abilities.
As to the elemental spells coming of WHM, I doesn't really make sense to rip one healer to make a discount version of them. When they could use those things to make a unique caster DPS and separate distinct themes and tools to make a new healer.