User blog comment:CoGreen2.0/Who Would Be A Good Villain?/@comment-3394399-20161220152935

It's admittedly quite tough not to pick someone who's already been used or semi-used as a villain since their roles have already been fulfilled and there's a lot of other sides of characters that we have yet to see. (Sierra is a great example.)  I also believe it's important to make the villain somehow relevant to the protagonist especially in a returnee season so it's kinda hard to pick randos too.

If the next season chooses to focus heavily on PI returnees, I could probably see Dave or Scarlett emerging as a main villian (though I'd really be fine not seeing Dave ever again). I'd consider Jo but I think she really deserves some redemption at some point, so she'd probably have to be set up to have a cooldown of some sort the next season. I'm not sure if RR would open itself up to having contestants singularly compete on TD because a lot of them rely on their partners plot wise, but I suppose either of the Ice Dancers, Taylor, or maybe Mary could potentially fill that sort of role. It seems unlikely though. I could also see Blaineley as a great villain had she not been disconfirmed as a returnee.

Overall it's pretty tough to see a lot of these characters as main villains, but I suppose anything could happen and there's probably a lot of sides to characters that we haven't seen yet, so really anything is possible. We'll just have to wait and see.