Job Wheel!

[Reynhart]

Its only the OP that is calling it a 'Job Wheel' and there is a whole lot more going on in that image.

Maybe because every existing archetype in the front wheel is a job.
As for the two other characters, one is clearly a summoner, with the horn, and the other is open to speculation.

The only claim that she is an arcanist is the book in her hand. Books were announced to be wielded by arcanist and summoner, but, strangely, the SMN in this picture doesn't have any weapon.

Maybe they changed their mind about that, since, never before, SMN wielded books, whereas SCH did every time it appeared.
And you can't overlook the fact that the last character clearly wears SCH AF from FFXI.