Electricity, Fire, Force, Wind, Ice
Water is obvious one in this set, the force set could be broken up and moved to its own thing, like Gravity, Time manipulation, And energy manipulation and energy dispersion. Creature summoning like genies, elementals, and such
Archer, Gadgeteering, Munitions, Powerarmor, Laser Sword.
A prankster set, would be a good idea, using some assets in game like the tin men use with the big black bomb thrownig and acid flower spray or using of a cane or umbrella. Cross bow set, differnat power otions for the guns to shoot cold, fire force and such, maybe different bullet rounds, hollow point, flare, and such even tracer rounds
Dual Blades, Fighting Claws, Single Blade, Unarmed
I feel after revamping the remaining sets, they need to add, staff fighting, more options for kicks and hand to hand under unarmed, drunken boxing would be cool. spear and a ranged option under this thrown weapns, like knife, axe and such.
This could be expanded very much, adding a whole new controller like sets to this, some of the devices already have some of these powers which could be added here.
Might, Heavy Weapons, Earth,
An option for metal under earth, Crystal, sets i would like a more lava active set with short ranged powers, even a cold ice or mystic force would be kinda cool.
Celestial, Darkness, Arcane Sorcery, Bestial Supernatural, Infernal Supernatural
This can be expanded so much with added powers under each and optional things like wands and staffs like guns are to munitions set, with different wands and staff costume pieces, and of course plant set and different summoning of creatures like demons, different factions like destroyer robots or mafia and such. Adding an illusion set under arcane
But think Celestial needs done next