Was going to make a thread, but I couldn't be bothered to do it. Those silhouettes are the numbers. Earlier on, Queen mentioned that he hates the Numbers because of how shitty they are when they're drunk. In the most recent chapter we see the silohouettes partying and drinking with possibly Queen reaffirming that he hates drinking with them. The Numbers themselves could also be devil fruit users given that most of them are in a humanlike form.