So on first watch it looked like it was just gannondorf coming back to life but on rewatch it looks like theres some sort of second entity thats causing the body to come back to life, with the arm sort of seeming to be driving the purple mist into it? Link also looks like he has possession of that green arm thats over gannondorf's body. So maybe some new item or mechanic that multiple characters control? So god damn hyped.