I asked if the Aimians as a race were, as I suspected, closer to the Cognitive Realm, and whether they are somehow related to the Parshendi.
Brandon Sanderson (paraphrased)
Brandon started by saying there are 2 sub races of Aimians for a start, and Axies the Collector is of 1 set, we have yet to meet the other but we will!
He did say there is 'Something' going on with the Aimians and their interaction with the Cognitive Realm but wouldn't elaborate on that point.
He then went on to say that Aimians are not in fact related to Parshendi at all, but the Horneaters and Herdazians are!