Ok, the other end of the question. What do we do with the new commodities? Are there Doff missions for them already or are they Cardassian/Dominion specific?
Yep, there are duty officer missions attached to them already. The ones I've seen are mostly trade missions, but I have seen a few that involve researching the properties of certain items. Apparently completing those missions unlocks more missions of that type as per the info text at the bottom of the mission.