You know....maybe the Development Team is already in the process of making AF4 for the 20 jobs as we speak? I mean, just look at the JSE Capes that came out in the July update.
Lifestream Cape (GEO) and Evasionist's Cape (RUN) for example. It wouldn't surprise me in the least if their AF sets were called that as well. I agree some of the names of the new Capes seem pretty confusing for the jobs. Like Dispersal Mantle (PUP), and Cornflower Cape (BLU) for example. What's up with those names? Doesn't make a whole lot of sense. But THEN you see these others with names that are so obvious it just screams "possible new AF sets". Ones like Mauler's Mantle (WAR), Rhapsode's Cape (BRD), Toetapper Mantle (DNC), Mending Cape (WHM), Gunsliger's Cape (COR) and Bookworm's Cape (SCH).
Also, keep in mind that AF "accessories" were lower level items. Look at the Relic sets as an example. The armors are 71-75, but the accessories (from dreamland zones) are 70. These Capes/Mantles are 99 but do not have the iLvl thing on the bottom right of the stat window. This leads me to believe (theorize) there's a possibility that there will be new AF sets for all 22 jobs, not just AF for GEO and RUN, and that they released one of the accessories (back piece) for these new AF sets in the July update with more possible accessories (possibly a waist slot item) coming in the August update.
AGAIN, this is all theory on my part. But when you seriously stop to think about it, it makes sense.