I have a feeling it's gonna be only 1 new Job for 8.0. With the excuse for the time needed for all the other Job changes (which won't be much).
Looking back was funny, they were afraid of admitting it was only 2 Jobs at start of Stormblood's fanfests. At least they finally learned their lesson with EW/DT to say "hey it's gonna be 2 jobs, and these are the roles" after the debacle with Dancer.

I wonder if we'll get to the point where it's just 1 job announced for the next expansion, and we'll have arguing about it.
I'm surprised they might still do a FanFest, they should've realized how much money they save NOT having to do it during COVID.