Eh, I don't agree with Geomancers as just a reskinned White Mage in terms of how it would look. Especially with the decreased use of Wind/Earth (Water has been negligible for ages) and an entirely different gimmick (presumably based around stationary effects or something else) they could make Geomancer's stand out. Given the themes involved there isn't really much in the way of a sensible new healer that isn't likely to step on the existing ones toes to some extent.