The first wave of Cult Mechanicus hit yesterday with the pre-orders of Kastelan Robots and their Cybernetica Datasmith controllers. Although there has been a mixed reaction on whether or not the aesthetics of the new robots are liked, those like myself love the new look.
As always here is a good look at the Kastelan Robots through the GW release video called
Warhammer 40,000: Cult Mechanicus: Kastelan Robots