It is possible they will upgrade the armor again in 4.4_5-6. Doing it now would encroach on Ridorana gear/mendacity stuff. The 4.4 gear reset would allow them to squeeze in something 5 ilvls lower than the new weekly capped tome gear.

The relic getting an upgrade makes sense, Eureka is dropping a bit after the patch which is usually the lifespan of the EX primal before they take a dump on their weapon either with the relic or another weapon (i.e Padjali/Kinna weapons from the first PoTD was the same ilvl as Nidhogg EX/Sophia EX weapons respectively). Depending on the relic ilvl I'm expecting it to be a lot more annoying/grindy.