Abnegation refused to have royalty, because it would be selfish to. Amity are still deciding about it. Candor, as usual, are holding regular debates for and against agreeing to it. Erudite are still not sure, so they said they're sticking to Representative for now, but they're looking into deciding to agree to faction royalty.
I'm actually an Erudite/Amity, but I was just making faction forms for Jasmine. I'm Erudite/Amity but I can rp as all the factions! There's Dauntless royalty? That's so cool!