I'm just curious what other people's thoughts were, because I know I'd always like a little diversity. Like maybe a long range fireball spell, and a midrange spell where you breathe fire instead. An ultimate move that creates a column of fire. Spray wall spells like in skyrim and ones that look more like real wall sections. A greater diversity of summons so everyone isn't just summoning the same thing (granted, part of a secret desire to summon a rampaging mammoth).
I know it's a minor point, but it seems like something that adds a little individuality to different classes.