Yes, the new materials settings may contribute to more possibilities.
I think it is possible although everyone does see it different that is basically no change from how people see the current shades differently depending on their viewer settings.
Since Illume caused me to wear sunglasses in my cattery I found that neat setting in which I could change the amount of glow from the default 2 *ouch* in 1.
My cats with Illume and Glitter looked like radioactive kitties before.
My eyes are ever so greatful for that setting I found in Firestorm