Villager transport systems would be for when you want something transported to a certain location and put in a chest without having akward mine cart transport systems like there are about to be in the new Redstone update. Villager transport systems would be something where you could pay a villager in some sort of currency (not emeralds because those are too expensive). With this you could give the villager stuff that you wanted transported and put in a chest, and give the villager either a waypoint or coordinates, and some money and they would take the stuff. When they got there they would put all of the stuff in the nearest chest and leave
Villager protection
Villagers would also need protection on the way there, so for that you could either send an iron golem with them to protect them or risk them getting killed and losing all the stuff.
Advanced transport
Also if you wanted to have the villager to be able to transport more things at once then you would be able to have a cart that did not need tracks that they could pull behind them.
It seems a little risky to send a unarmored villager just deliver stuff. The transport system in the coming update seems fine to me. I also can't understand why you wouldn't pay them with anything other then emeralds. As for me, No support.
Also, try an Ender Chest or something.
[quote=Badgerz]You have to keep in mind that people are stupid.
[quote=Catelite]Just because you don't understand how something works, doesn't make it broken or pointless. >_<