Goemon would make a great belly dancer.
No question, just my theory. Piper is the main killer, and the daughter of Maggie and Brandon. Kieran is the secondary killer, gets close to Emma, gains her trust to find and exploit her weaknesses. Noah or Audrey would be the third final killer, also getting close to Emma and actively playing on the hero side to fool and deceive in favor to the other killers. As for the bloodbath, I don't believe it will be in The Dance, but if it does Jake and Brooke will die. I do wish Brooke would survive :(