New Maplestory Elements?

Rather than add more elements, I'd rather see them make use of the existing ones better. Right now all they do is randomly assign some fire, ice, and holy weaknesses (and the fire usually gets shafted the most), and ignore lightning and poison. Then for bosses they just make everything have immunity or res o_o

Some monster patterns concerning attributes...
--Fire: Lots of monsters are weak to fire, but lots of monsters also resist fire. A few (like less than 5, not %-wise) are immune. There's a strong correlation between fire weakness and ice resistance, and vice versa.
--Ice: Few monsters are weak to ice. But lots of monsters resist ice unfortunately, and even a large handful of monsters are immune. Ice also seems to be the favorite element when it comes to slapping an elemental weakness to some important monster, usually bosses. Most ice-based attacks tend to be weaker than normal (except maybe Blizzard (AM)).
--Lightning: It's ... boring. More monsters resist lightning than are weak to it however, but at least none are immune to it ... yet. Lightning largely has no effect.
--Holy: Lots of monsters are weak to holy. It's highly comparable to fire in this regard. But there are few monsters resistant to holy, which makes holy a winning element in regards to damage. I think only Geist Balrog and Bigfoot is immune to holy.
--Poison: Um, I never did any tally or summary of this element at any point in my Maple career xD (LOLPaladinLOL)

Making bosses resistant or immune to given elements just makes it way worse for element-reliant classes, and this has been an intense subject of debate. Imo, elemental weights should be redone in the formulas so that all classes can get some fun out of bossing. Or at least make it so that having elements gives you some advantage over non-element users in certain situations, such as a monster being only vulnerable to ice or fire, immune to everything else including non-elemental weaponry.