Wouldn't count on it any time soon. This shield is supposedly to be "the ultimate" workmanship item for crafting, so spending the stupidly grandiose amounts of time making them makes them so much more annoying to make and "oh so much more rewarding" when completed.

I just wish they'd remove the ability to bazaar or AH the spirit spheres instead, then the gil-botters won't even bother wasting their (and our) time making them. At least that change is a lot easier to do on their end than removing the [rare] tag on the materials would be.
Atm on Asura, each sphere sells for:
15k-30k for NQ/T1 spheres,
50k-200k for T2 spheres, and
250k-500k for T3's.
Just stupidly overpriced for an item that costs 0 gil to make if you farm items and clusters. If everyone stopped buying them from gilbotters and AH, and farmed their own, then the price might even drop to a reasonable level.