How about more stash tabs for gold or gems?
When you really get into the game, you're farming, mining, crafting, etc etc... there just isn't enough space for all your pickaxes, axes, hoes, and shovels. They break easily, so we horde them. I keep my gold coins, silver, copper in my inventory as well as my ores, potions, food... I find myself constantly running back into my base to store stuff, but it is becoming very tedious.