In a brief scene, Rogue notices a partially visible Yellow Watch on the wrist of a random Archestian citizen. He dismisses it and continues, this moment occurs during his visit to the Tallyvont District to speak with a Noidmason.
As Rogue enters the Noidmason, he is greeted by a young child, Art, whose mixed heritage of Heaven and Gates is subtly revealed. This introduces the audience to the hidden possibility of crossbreeding between these two worlds. The visit to the Noidmason ties into Bail’s story arc as he investigates the humanoids further.
During this sequence, Rogue uncovers evidence pointing to Bail as the perpetrator behind the crimes he's investigating. Yet of course Warner, intercepts this information and relays it to Poppet himself. Ensuring Rogue doesn't receive credit from Poppet for discovering the crucial information. The Gatekeepers themselves could even arrest Bail first before bringing the matter to Poppet, further sidelining Rogue's role in the discovery.