Assuming they are implementing a general (non-quest) crafting system, I would much prefer:
a) We can only craft consumables (potions, scrolls, traps). I could really do without DOS's systems of crafting/improving armors and weapons every level up & new armor acquired.
b) There are not a bajillion options. 2-4 traps, ~5-10 potions (heal, fly, invisible, strength, alchem fire, poison, heroism, resistance, speed).
c) Scrolls: We should have to expend a spell slot, casting the spell into the scroll. This would additionally cost only paper and X GP. We should not have to collect a different herb/ingredient for each spell.
d) Kits. Either we can just buy "Herbalism kit, Poison Kit, etc." which contain all the necessary ingredients or:
d part 2) Failing ^, all herbs+etc we collect go directly into a dedicated kit/pouch. Item clutter is already a problem in this game and dedicated pouches that ingredients automatically go into would be such a relief.