hell yeah, I would LOVE to see crafting in this game, for example: the rune longsword could be made with a standard sword hilt and blade, meaning you can craft hybrid weapons, and I would also love to see potion brewing! I know I've already mentioned potions, but maybe a cauldron in Heck, as an incentive to visit heck more often, that you could throw random stuff in for different effects. I don't know if this would be a good idea, but maybe a hunger system would give it more challenge, like you have to kill monsters for meat and find pools in the wilderness or toilet realm to drink, I think it'd be pretty dope. On the topic of biomes, as you mentioned that the very colorful terrain (rip) will later be added as a biome. I have a proposal, I can tell there's biomes, but it's super hard to tell. theres mountains and plains, as well as canyons, but they all look the same. maybe have some easily seen different biomes, like a sand floored juice desert, with pools of lava, or large oceans here and there, something to find new and explore. I'm asking too much, lol, I'm gonna go. sleep, n' stuff...
On another note (Christ in hell, I talk a lot,) I think a building system would be EPIC. Like maybe going along with crafting, you could get wood from trees, used for many recourses, and maybe could build houses out of sweet succulent plywood. Maybe also you could build with stone, which you could get from like caves or something, maybe houses made of pure juice lol. I dunno, it just seems like a neat thing, but this is prolly super bothersome so I'll actually stop now.
Great update by the way, been playing for 40 minutes now, looking for all the spells. I only have to find kinesis and tiny sun, so wish me luck.