Job trailers are not meant to show case rotations, or nuances, or anything associated with high level play. They're meant to showcase animation updates, glimpses into potential kit interactions, and the 'Job Feel'.

While there's quite a few high winners here, and a few low points, lets cut to the chase.

The Scholar's job Trailer is an abject failure. While there were a few easy hits for all the healers that were missed, none of them faceplanted as hard into the ground than Scholar. 75% of the segment was nothing new, and what was new was the usual 'No context ally targeted ability' and a greenlit walk up to the enemy. There were actually legitimate improvements in how they trailered healers this time - The usual "No context ally targeting abilities" were given much more visual clarity, and the post-video live letter segments gave much needed context to them. (Heart of Water is a single target buff for example and not just Benison 2). Despite this, there is effectively no argument to who lost. Scholar did.

Contrasting that, the good points from Scholar can be attributed to extrapolation from Pet AI improvements and general QOL improvement across the board. I have no doubt that 6.0 scholar is going to be significantly better on the gamefeel even if the solution was a GCD cast reduction (Which people asked for). Improved Pet AI hopefully means less ghosting and more snappy responses, but infinite weave windows will make this mostly moot. Scholar / Ast will still likely be the speed killing combination given they still bring the most party buffs, and every other job being put into the 60/120 window only strengthens that.

If you liked 5.0 Scholar, 6.0 is probably just going to be more of what you liked but better. The same for White Mage.

Astrologian is a wait and see case. The self enhancement and what that entails will determine much of how the job should be received - Could potentially be good, could potentially be bad. There are too many unknowns here, but the direction isn't unwelcome. It's 'new stuff' and new stuff is always welcome. If you liked 5.0 Astrologian, this is going to be hit or miss - But the good news is that 5.0 Astrologian is basically New Whm or New Sch.

Sage definitely had the most pizazz, and while it might not seem as such, you can see a fair amount of player centered feedback into this design. On demand spell enhancement for higher mobility windows and on demand double weaves, a stock DPS option to dump into burst phases, "More than 1 DPS button", and "Not DoTs" (Okay that might just be me). Tying healing into damage dealing means you don't necessarily use everything on CD and you don't necessarily only dump in burst windows. Separate healing resources that in turn may/may not feed into DPS resources (This part is a little unclear).

Without more details though, it's all up for speculation, but I would label it as thus.

1. White Mage is just White Mage, but better gamefeel due to general QOL.
2. Scholar taking the big L, but if you like 5.0 Sch it's likely just going to feel better due to general QOL. Probably still the speedkill shielder.
3. Ast has too many unknowns. It will likely swing lower and higher on damage compared to White mage. Probably still the speedkill regener.
4. Sage has much of the player feedback implemented into its design. Those of you tired with 4.0-5.0 should give this a try.