There have been rumors of Siva returning, we even got several Siva ornaments for weapons and armor, and even a ghost projection with the Siva logo. Are these clues to future content? Not everyone played D1 and some have no idea what Siva even is. The video I linked can change that if you are interested. I played out the entire Rise of Iron campaign and stitched the cutscenes and gameplay into a full length movie. If you choose to watch, enjoy