It's Abyss, and he's coming for Aces & Eights. The words in the video, and the general feel of the video, makes me think Abyss. He'll go after Aces & Eights for what they did to Joseph Park, and the "Joseph Park" character will be written off somehow. That's my thinking anyways.
Sting is another option, to go after Aces & Eights, but I doubt it.