Will he look like the man in Escanor's wanted poster? I think I'd like that.
Here's what we know so far. He's the one who gave the 10 commandments their decrees of course, but for some reason he's currently in purgatory, which suggests that he's dead. Did Mel succeed in killing him, along with Dolor and Gloxinia who are reported to have fought him alongside Mel?
And apparently he's the one who cursed Mel and is the reason why Mel can't die for good. He also has been feeding off Mel's emotions in order to regain his strength.
This suggests that he plans on taking hold of Mel's body or to be more precise his emotions. An emotioneless Mel will surely be as powerful as he were before he betrayed the demon clan 3000 years ago.
Another thing that is worth mentioning is the size of the demon king, which based on this panel could be huge. I theorized that just like Izraf who was the king of the vampires was rather huge himself, then maybe Suzuki is also going for something like that for the king of the demons.
Also it's worth noting that he seems to be in ethereal shape, which could mean that he lost his body.Just like we saw with Fraudrin previously, so this might reinforce the theory that he could end up possessing Mel.
When it comes to the demon king and the lore, I find it more and more likely that he's the equivalent of Satan or Lucifer to be more precise. Given the similarities in appearance between the demon and Goddess clan, and how their powers are polar opposites, it would fit that the demon king was a former Goddess clan member, who rebelled and later established the demon clan.
Both the demon and Goddess clan seem to be inspired by Christianity, the most notable hints are the 10 commandments for the demons, and the 4 Great Angels for the Goddess clan. There's also Nerobasta's attack, Ark, which is a direct reference to the Ark of the covenant, a rather important religious artifact which is said to contain the tablets of the 10 commandments. Coincidence? I don't think so. This further reinforces the idea that the demon and Goddess clan were once one and the same.After all demons are for the most part fallen angels in the Bible.
Now if I were to speculate about why the demon king would break away from the Goddess clan, maybe he was too proud like Lucifer and he thought he could rival God?The mere fact that he created the 10 commandments makes him the equivalent of God. And so he started a rebellion and was cast away. That or maybe he was disgusted with the ways of the Goddess clan, but I find that to be pretty unlikely atm.
Now the big question is will the demon king be resurrected, and if so would it be through Mel? For various reasons I can see that happening, if it's just for the sake of learning the truth about the Demon and Goddess clan.
What are your thoughts?