Question about Allagan tomestones of astronomy

[BRVV]

Will even the current relic costs moved to poetics?

[Jojoya]

Will even the current relic costs moved to poetics?

To add to what Iscah said about relic costs likely getting changed from Astronomy to Causality:

If you have sufficient Astronomy to purchase another relic or relic upgrade, make certain you do it before 6.4 is released. The exchange rate once 6.4 is here will likely be 4 or 5 Astronomy to 1 Causality. 1500 Astronomy would only give you 300-375 Causality toward the next relic purchase/upgrade. Better to use them while they're still at full value.

If someone has nothing they wish to purchase with Astronomy before 6.4, then let them cap. What gets converted to Causality can be used to purchase the new tomestone crafting mats that will be added in 6.4. If you won't need those materials for personal use, they will be worth a lot of gil the first couple of weeks of the patch as raid statics prepare for Savage.