Geomancer

[Archwizard]

its more likely that healing as a whole within the system needs to change in 6.0

Personally I'd be down to see such reforms as:

• WHM being reworked into largely a GCD-based direct healer through the Cure line, like having their HoT effects reworked into buffs to healing received
• SCH reworked into a stance healer, with Selene reworked to focus on counterattack damage and Emergency Tactics reworked into a toggle, so that you're compelled to change "formation" with the situation; could also use some button consolidation
• AST losing Sects and becoming the dedicated HoT healer (calling to Time Mage's use of effects like Regen), with an emphasis on effects that stagger and slow down incoming damage to make the HoTs manage it; this could also pair well with the cards system, giving you windows to focus on spreading buffs while HoTs tick away
• A new Battle Healer-type job focused on fueling healing resources via damage output (like a Drain/Osmose effect); a high uptime attacker but only bursts of potency

... But I'm also weird and think there should be a push towards emphasizing GCD and single-target heals. And that Synastry could be displaced from AST onto maybe WHM or a new job (a Drain-based healer with Synastry could be wild).

At the very least I don't think GEO poses opportunities for a truly unique healing model, while it would have a lot of leeway as a DPS. Perhaps as a stance-based caster, or a displacement of DoTs from SMN so they can focus on their pets.