Magic as a Main Theme in an Expansion?

[Ultimatecalibur]

That is what I find odd as well. A whole new job and not even mentioned in the original or extended trailer.

Neither Astrologian, Machinist nor Dark Knight were showcased in the HW trailer. Only Warrior and Dragoon.

Samurai was the focus for the Othard section of the trailer due to the job suiting the atmosphere.

If they were going to do a trailer focused on a Victorian London style metropolis Red Mage would likely be the focus job.