Thoughts so far:
- Don't like that Aetherflow Generation is tied to shielding, and only with Adloquium. No healer should have to pay a GCD tax to access DPS actions or Raid Utility consistently, even if you do attempt to solve this in a clean manner with Seraph near the 90 cap, the DPS actions conflict with this goal.
- Personally I'd rather have old Emergency Tactics back. This limits their dungeon healing potential, even with the Physick buff (which is mostly a nerf given the shields break rather easily at their current values and you've removed critlo).
- Selene and Eos kinda feel tacked on in places as expected. You're expecting us to swap with the given skills so I'm assuming the pethotbar is completely gone. As written there's an obvious dismiss exploit. Not sharing cooldowns also encourages its use.
- Removing Fey Union? That's kind of their best skill for tank healing. Fey Gift is an adequate replacement in dungeons. But will be a fiddly mess in Savage.
- Is...Spark supposed to be spammable? That feels like a moderate recast action if I ever saw one. Either too good or completely useless. Lends itself to that kind of variance despite how simple it looks. Same with the upgrade. Needs an AoE component, maybe needs to be instant-cast. I think it would be a frustrating spell to utilize in practice.
- Supersession is AoE Magic Only Hallowed Ground. Blue Mage will probably get something like this. No real job ever will.
- Transmogrify won't happen just for the modelling issues alone. condition's hard to meet.
- There's a lot of fiddly and redundant heals in here. Fey Covenant won't see much use given everything else.
- Eventide is Dissipation for Fey Gauge. I don't like that tradeoff given how hard it is to get Aetherflow.
- Not sure how to feel about tying Bane to the fairy. Also, it spreads DoTs but not Chain Stratagem?
- Greater Catalyze really should just be a direct conversion to pure shields. They're weak as it is.
- Helix is still too weak relative to Broil III to be used for weaving, and it seems like this kit has even more weaving issues than current Scholar.
- Meltdown is an auto-spam button. Big conflict with Galvanize.
- Doesn't seem like much was done to affect the rotation. Three DoTs, sure, at 30, 60s, and 18s. I'd personally suggest 21s for Miasma just for overlap protection. Meltdown is effectively one at 15s too.

All in all I'm getting some additional pet micro-management, more difficulty accessing Aetherflow heals which comes coupled with DPS Aetherflow not having enough baseline resources to be consistent. It's probably stronger but I don't know how much it really adds over current scholar in terms of facilitating flow. Instincts want to compare this to AST in terms of clunk and power. It's not bad, but I think SE would shy away from this. I'd double check your generation/consumption rates.