Commodity trading was a great first step to adding a little logistical fun to Sea of Thieves, especially for people who enjoy games where you haul stuff from A to B. Personally i play a lot of these types of games, but its addition to SoT was a while ago and nothing has been done with the admittedly barebones system since then.
I'd love to see an upgrade to it as part of a seasonal update, in particular regarding the quantity of goods you haul, the way you load and unload them, and a dedicated storage facility on your ship that is used to neatly stack a large amount of commodities. It would be great to have some dedicated cargo ships (just your captaincy sloop/brig/galley but with a trading focussed loadout) that maybe sacrifice visibility and room to maneuver for cargo racks that will let you neatly stack a tower of commodity crates on them. Another upgrade you could get is a cargo crane that lets you load and unload multiple crates at once between the docks and your cargo racks, though this crane could also become a part of the dock near the Merchant Alliance. The variety of goods are already in the game, you'd just be able to buy/sell more of them at once.
Risk/reward would be present as always, and your ship might be slower to get to full speed, slower to turn, and visbly has a large stack of cargo on it from maximum spotting distance to let pirates know you are a juicy target to attack. At full load your ship might also lie low in the water, similar to being hit by a ballast ball (except it's real ballast in this case). The offset to these increased risks are ofcourse being able to make a lot of gold from one heavy and long trip. Though i wouldn't do it for the gold as much as just combining one of my favourite things to do in gaming with one of my favourite games.
Just some wishful thinking from a merchant sailor
