Similar to the Weapons some images of artifacts associated with each one of the Bloodline are surfacing. For now it is unknowned if they they are gonna be part of the game or are just concept art and what role they will have in the game itself.
John Hanke has stated that "Each one of the lines has its own artifacts and weapons. If [a weapon or artifact is] from your line, it'll be better than if you find one from another line." John Hanke has confirmed this and mentioned they are working to monetize in tie-up with companies like done in Ingress. He also mentioned players will be able to trade items amongst themselves
Horned Bull Ring
A Shiva Bomb