Just a quick suggestion I thought of, nothing fancy about it:

Next June, when the Slithering Minions return, could we perhaps have an enemy which counts as many individuals? Think the African Wild Dog packs; three fairly weak enemies attacking you at once, going down one by one, providing extra difficulty but also helping complete quests faster (these battles count towards three X defeated instead of one)/possibly providing more Chaos Scales and/or Khepri Beetles.

I figure they'd be slightly stronger than your average 'pack' encounter, only because that would be multiplied by three hits early in the fight.

Could be a hydra, or a coil of demonic noodles; maybe called Slithering Multitudes?

Again, it's no big idea, but I figure itd be a welcome addition to the lineup and, moreover,one thatd be highly rewarding to fight.