So:
you can put up offers in towns. This means your goods/items are stored there and when someone accepts your offer, you get your money. Hopefully this helps independent traders and crafters so they don't have to contact people to set up trades.
Troops can carry equipment on their body (1 helmet, 1 armor, 1 pair of boots, 1 pair of gloves, 2 weapons [up to 4 stacks of arrows, bolts or throwing weapons count as 1 weapon]). If you have more than this, you carry stuff in crates. Trading goods, Spare weapons and armors - that goes into crates. One crate takes 30kg. Two men or one horse can carry a crate without additional penalty. Trading goods have a weight of 5.
So, this is the speed you will achieve:
180% speed with more horses than troops, and equipment worn directly,
130% speed with slow horses,
100%-90% with equipment worn directly (depends on the weight of the equip you wear),
85% if you have more horses than crates,
75% to 40% if you have troops carrying crates.
Faraway goods bonus was manipulated so it's a) higher and b) it goes more like this:
The idea is that, once you have reached around 70%, the increase is getting lower again, so you don't necessarily have to move to the very last village in the corner.
some other stuff I forgot and will write some details about when you remind me of them.