So with the dawntrail benchmark, a few things have been revealed.
Sage
It seems to have a big AoE attack. It kind of look like a Toxicon. With new damaging spell rank, ToxikonIII seems to be the most likely.
It also seems to follow the animation evolution of the spell.
ToxikonI : sparkling pink tiny laser
ToxikonII : 4 big lasers
ToxikonIII : 4 big lasers with a burst shot
https://youtu.be/7EJfr9G95t4?t=123
Astrologian
The movement animation is the same as when casting aspected helios. The animation clearly refears to the sun. Helios being the sun's god, this could very well be "Aspected Helios II". We can see the little bubble/planet orbitings around, characteristic of helios' anilation.
https://youtu.be/7EJfr9G95t4?t=157
White Mage
Same as the astrologian, the character animation is the exact same as MedicaII. The white animation on nearby allies suggests it is indeed a heal. The clear lily animation suggest it is a lilly spell.
https://youtu.be/7EJfr9G95t4?t=271
Scholar
Looks like a debuff AoE spell. My first thought was an AoE chain stratagem, but the animation doesn't fit. Chain strategem is basically an analyse spell. This one has little time cog suggesting it is time related. SCH has many mitigation tools, I suggest this to be an extra -x% damage deal by targets in the area.
https://youtu.be/7EJfr9G95t4?t=276
Personal thoughts
I feel like we've been presented the "weaker" new spell in our kit. The equivalent of protraction, aquaveil, exaltation and Krasis, the lv 96 spell.
At first, I simply thought, AST got a new animation for aspected helios, Sage for Toxikon, WHM for MedicaII (IV?) and SCH got... AoE slow or whatever.
But then I thought, wait, this doesn't make much sens, first they usually only reveal the "weaker" spell in those trailers, second, while the level 90 is quite unique to each job, the one before tend to fulfill a similar purpose among each healer as to keep them in balance. ToxikonIII, über Medica/Helios and SlowTime don't seem to achieve the same goal at all.
Which leads me to believe that the lv 96 spell is for each job a situational enhancing tool which enhance one spell (or more).
Just showcasing "ToxikonIII" as the new rank doesn't make much sens considering the 3 other healers get a much more interesting release. Eukrasia being only used for 2 spells, it feels like this could be a great way to have more spells tied to it.
Following the "enhancing", I would suggest that upon certain condition, you can do Eukrasia -> Toxikon which results in ToxikonIII. Dealing more damage but perhaps also projecting an AoE heal.
WHM seems to have a lily MedicaII. If it is just a straight up animation upgrade, when adding lilies? So far, all lilies spells are tied to the lily gauge. Giving this animation to MedicaII either means MedicaII now fills a blood lily (I don't believe that for an instant) or that now lily can do more than a regular CureII or Medica, but can also reproduce MedicaII. The spell isn't instant, which is at odd with the regular lilie animation...
AST is the most in line with a simple "visual upgrade". but when considering WHM, it doesn't make sens. We also have Neutral sec which visually speaking is more akin to "nocturnial sec". Perhaps this is "Diurnal Sect". Big coppium here, the sect are back but as an ogcd. For instance, "Diurnal/Nocturnial" sect are 15s ogcd with shared CD which turn Aspected Helios into the appropriate version. Either a heal or a shield. This is Diurnal Aspected Helios. Aspected Helios currently makes no sens, aspected to what? we're in permanent "diurnal" stance. I don't think they'll lock us back behind one stance per fight. But since we kept noc sect through neutral sect, giving us both sect as 15-30s cd (or totally different one, like 15s for diurn, 1min for noc, 2-3min for neutral) would make the whole more cohesive.
Following the idea of enhancement.
Scholar doesn't get a heal, it seems like a debuff. ToxikonIII doesn't trigger an AoE healing animation so, could it be that ToxikonIII and "Timestop" are debuffs.
This would further the distinction between pure and "shield" healers.
Both pure get a boosted heal, both shield get a debuff.