Maybe in 5.0 when we can do "gardening/farming" we can finally have 100 slots to plant seeds. And maybe have the vendors sell the seeds too xD.

Or maybe mobs will drop shards/crystals/clusters just like in FFXI on defeat.

Maybe trade 5 GC seals for 1 shard, 10 GC seals for 1 crystal, 20 GC seals for 1 cluster. Apply the same with Poetic tomes.