TheLostCanvas
Will there be a primal plateskirt?
No plateskirt, no chainbody. (Though the platelegs have a somewhat skirtlike element to their design.)
Primal follows a similar pattern to orikalkum, necronium, bane, elder rune where there's a narrower set of items to keep the artist time at our current fidelity manageable.
Most of the items at a new artisan tier just exist as XP training fodder, since once you have a fully upgraded set for your own use, there isn't much of a demand to keep smithing more equipment other than to sink them out for burial XP, modest moneymaking or filler invention components.