New Maplestory Elements?

Don't ever say 'never' when it comes to an MMO, an MMO is ever-expanding and you never know what could happen. I'm surprised they have 'Holy/Light' as an element, but not 'Darkness', I find that kinda dumb.. Dark Knights doesn't count because they don't use Dark-elemental magic. In another MMO that I play, there was a Darkness-elemental skill that when used, does as much damage as a Light skill, but it works in opposition, so it'd do more damage to Light monsters, vice-versa. But for the Dark-elemental magic skill, there was a 50% chance of the monster being OHKO'ed instantly after it gets hit. ;]