Maybe X-Cutioner has a major role in the new cartoon, more involved than his few comic appearances that you mentioned (I found it to be odd) but since the plot seems to be hinting/alluding to an inferno with goblin queen and baby, maybe they are blending it with xcutioners song and having the actual xcutioner play a role (which confused me as a kid/seemed like a missed opportunity to me). Maybe he is hunting babies?! Either way I’m actually more excited now that this underused villain is in it.