I'm not sure if this was mentioned before but during glamor runs of the Swallows Compass and the AST SB quests I noticed that the Geomancers seem to use Earth, Wind and Water attacks and spells, AKA the elements that were phased out of WHM, so it does seem like the gorundwork was being laid out earlier than most of us thought (unless this has been brought up before in which case I apologize for regurgitating more info and the groundwork has been laid out as early as most did expect)