With the introduction of Unique Tech Trees by race during GC II, one of the neat concepts was the ability to trade for (some) techs that wouldn't be ordinarily available to a race.   If you traded (or stole) for something outside of your "normal" tech tree, it would appear in isolation (or grouped with similar techs) and new techs following that tech couldn't be researched.  But the benefits that the tech gave were available to be used.  

Near as I can tell, this isn't presently included in GC III.  

Doing some looking about, most of the techs that appear to be a unique tech are just a re-branded flavor tech for that race (which was often the case in GC II).  But there does appear to be the occasional tech that doesn't appear to be available for trade.  For instance, as an experiment, I tried to trade Environmental Resequencing to the Altarians (which doesn't have the tech available to research).  But when I tried to trade it to them, I couldn't.  I am able to trade it with the races that do have it, however.

So my question is, will being able to trade for some techs outside of your tree be implemented in the game?  Obviously some techs wouldn't be/shouldn't be able to be traded (the ones that were simply too foreign for a civ), as was the case in GC II.  But some should still be able to be bought/taken, IMO.  

This is a concept that I liked quite a bit in GC II, as I would often wait to until a race would research a coveted (by me) technology before, ahem, liberating their planets from their oppressive masters.