[@Sigma] The core concept of the Concordat, the one fixed point floating around in my head for them is heavy cybernetic augmentation, to the point where they're almost living computers. They disdain their origins and the past in general and look ever onwards to the future of all life. They believe this future is the succesful digitization of consciousness and as a result the ascension of all life into a virtual utopia. In this context, whether they're a new species or an offshoot, I envision them turning their backs on the garden worlds as relics of the past and instead thrive in high tech artificial habitats all over the system, trying to convince others to join them in a benign but really annoying way. Basically, it really doesn't matter what their original species is, so I'll work with anybody on their origins.