Okay, just a couple ideas.
First, I think it would help the crafting system if all craft materials fit in the crafting bank.
Second, I came up with an idea for guild based resource gathering upgrades. Not like the banner, which is temporary, but a permanent upgrade that adds places that generate resources for the guild.
These should be fairly expensive to get, but provide a decent amount of the resource assigned to them. Ores from mines, lumber from tree farms, etc. Only the base level resources that can be harvested from nodes could be produced in these places and ultimately they are meant to supplement the guild member’s gathering during gaming.
I find that I can’t quite keep up with my crafts without taking a day to focus on gathering mats every so often for some reason. I’ve gotten mixed results when mentioning this to others but if properly balanced I could see this helping out quite a bit.