I have a feeling they're going to add a few more items eventually, including black metal armour and a bit more variety in the weapons, armour, and gear department. I wouldn't be surprised if they end up tweaking copper and iron harvesting a bit to make it slightly less of a grind as well, but that's just a hunch. I don't mind exploring the crypts, but smashing the junk piles takes just a little bit too long so I end up limiting my time in the crypts because of it. Same goes for copper mining. I'll mine 15 or so pieces then I often go do something else. Tin is almost too easy in comparison. I'm pretty sure they'll tweak the balance a bit as development continues.