That trade ship is still to come. Look at alll of the changes in the game. Planets produce different amounts of things now, Ports trade very differently than the old version.
Hence the coding requiring to make all things work takes some time.
But, once things are complete, man what a game this will be.
The new trade ships will be seen in space and open to be attacked. They will be seen in the sector that they leave from and the sector that they trade to.
The possibilties of trade will be far more than what we have had in the past.
Keep playing the game and learn about the new parts as they are completed and introduced into the game.
Cheers