Question about Allagan tomestones of astronomy

[Iscah]

Stuff generally gets moved to Poetics, with the improved gear versions being the default and the normal versions dropped.

Materials might move to poetics, but the Radiant gear will be moved to the Hunt vendor like the Moonward gear before it. The Manderville weapon upgrades will likely shift to the currently capped tomes (causality) that will become the uncapped tomes.

It's only when a new expansion comes out that the endgame tome sets convert to being sold for poetics.

Edit to add: I think they also only start selling the "improved gear versions" at the next expansion as well. Until 7.0 you'll still need to acquire the upgrade tokens for the Radiant gear once you've bought the base items.