Yeah I know this is late but life likes to get in the way of things some times, but a new RWBY fan idea/theory is here! Basically the idea is simple, Sienna is based off of Shere Khan from "The Jungle Book" by Rudyard Kipling. Within that book series and most of its adaptations, Shere Khan is crippled in some way. In the originals he was born with a bad back leg, which is why his birth name was "Lungri" which means "the lame one", while in an old animated adaptation (not he Disney one) he is a white tiger, a coloring that would make it difficult to hunt in the jungle, and in the "live action" Jungle Book from 2016, he is missing an eye. Its because of this that I think Sienna might not be as dead as we thought. Given aura and semblances and and some magic and the fact that Remnant's technology is a bit more advanced than our's, who is to say that Sienna isn't still alive? She could come back after Adam's attempt on her life, but this time be crippled in some way from the attack. Maybe now she has heart problems that hinder her or maybe Adam wound up destroying one of her lunges so now she has more trouble breathing? I'm just saying that it could be a possibility that wouldn't break the world they have set up, nor would it conflict that much with the original character that Sienna is based on.