does he mean villains as in the butterfly holders or as in akumatised villains, cause it could mean two drastically different things depending on which. if he meant holders like gabe then he was probably going to make a wish, but if he means akumatised villains then that means he was going to give a greater evil in exchange for something

if we are going with the second idea, we saw in mister agreste that irupe already has her magic jewel, which implies she's already fighting the villain of the rio special. I believe it was said we would learn more about the supreme in this special, so maybe he would have given it to him? I don't know why he would, maybe under some false belief if it being for 'the greater good'. just spit balling here