Fallout 4 did something close to what I wanted from TES crafting but not quite and it seems like kinda a given bethesda will use some similar mechanic for the next elder scrolls, when you have a mechanic that works you want to use it as much as possible but I don't think the modular approach that fallout uses would quite work in a elder scrolls game for crafting largely because there just aren't as many meaningful parts to attach attributes to in swords/armor. A sword is basically blade/pommel/crossguard. I suppose you could things like gems, or inscribed words of power, but those would have to be carefully balanced to prevent being redundant with enchantments.
So here's what I was thinking, rather than try to go the piece by piece approach why not focus more on the materials the items are made of?
For example, normally when you find a weapon it's appearance is determined by it's 'quality' all steel items look the same, all elven items look the same and all glass items look the same and so on there's usually no variation in appearance, but what if there were? What if instead you could craft based off of design to set the appearance, so rather than going to a forge to craft yet another 'steel' sword you would go to craft a 'sabre' or 'broadsword' or 'longsword' or 'rapier' each with it's own set of base properties then you choose the material to make it out of steel/mythril/malachite/ebony/whatever. and that choice alters the appearance of the weapon as well as allowing a person to craft their favorite weapon types from materials that might not normally be found like making a mythril akaviri blade or a ebony scimitar.
Something similar would be done for armor allowing allowing people to make armor designs that look unique but also are crafted to fit player style want the protection of dwarf armor but wish it were a little lighter? Craft the design out of malachite instead it might look odd having a set of greenish dwarf armor but it'd be lighter still quite protective.
Now there's a few hangups here, deadric for example stands out and leathers/furs would need their own categories of patterns/materials since you obviously can't make steel fur armor. But you can make leathers or furs out of the hides of different animals making hunting more than just a diversion for role players or people hunting for alchemy ingrediants that come from animals.
Deadric on the other hand could have variations based off the deadra it's made out of instead of always having that generic dremora armor. let us get golden saint armor or scaled armor made from deadroth or clanfear hides or some form of magic armor made out of atronachs.(For those who don't know deadric armor is actually made out of deadra so this isn't as strange as it sounds)
What do you guys think? would it work? WOuld it be horribly unbalanced? too complicated? or what?