Watched your video and when i saw the arm of the jacket flapping empty my first thoughts:
Riot gone and cut is arm off. We are not only getting the General, but a battle worn General. I didnt see a cane and figured if you aint got no arms, how would you use a cane?
https://www.youtube.com/watch?v=f-Uqzp1AVDM
But it seems Riot didnt cut his arm off. kinda disappointed to be honest.
He lost his right hand to Irelia. Thats why it is glowing red,because it was replaced by the demon.
If you look at swain's special interactions it is actually implied that Irelia took his arm! :> One of his arms is now a demonic claw, so his original arm was probably cut off by Irelia somehow. Hoping to get some lore on this soon, sounds interesting, especially with the Irelia rework right around the corner.
Here is the clip of the interaction if you are interested! https://youtu.be/IaGaqTW6QPQ?t=6m49s
