Well on the youtube page someone asked this "Hey. Any idea if you guys will ever come out with a trading system? Thanks." and they responded
piratesonline (2 hours ago)
@masteryodaman111 - "It is being discussed but Tia Dalma's cards does not foresee it in the near term" Which basically means no trading in the near future. and you should go see the youtube page here it is:
http://www.youtube.com/user/piratesonline