I don't expect this one aspect of diplomacy to become the entire game. This discussion leads me to believe others think it will.
I tend to agree, but it is an exciting new feature and I think it is great for everyone to put all their ideas out there.
I see it working more along the lines of when you marry as you have children, when you go into diplomacy your kids and the guy you are speaking withs kid's show up as tradeable resource. If you offer one of your descendants in a trade, the other side gets to see the attribute's of that descendant. If the trade is made, they are part of the other player's kingdom and any offspring would be theirs. Technically your descendant is now a member of their tribe, although not as a tradeable commodity, but as a means of producing more descendants (for the other player) Now whether you traded this desendant in order to gain a peace treaty, improve relations, or in exchange for one of their descendants (or anything else) that would be between the two of you to hammer out.
What I really like about the idea of them having specific attributes, particularly magical relate abilities, is you could create an ad hoc Bene Gesserit breeding program trying to create your own "Kwizatz Haderach" (sp?) There could be levels of attributes such as low being high intelligence, strength, charisma - medium varying abilities in different schools of magic, and possibly the ultimate would be to produce a born channeler descendant! (Possible victory condition?). And of course as a channeler you could take ANY of these and make them powerful heroes by imbuing them with some of your essence (it seems they are already talking in that direction.)
Of course I could be totally wrong. Those are just my thoughts of an interesting possible direction.
By the WAY, when can we expect to see the results of this survey, NT?