I wanted to see the differences in the fire mage abilities, but the updates didn't really take. I haven't really looked at the other ones.
Burst of Flame still has the 0% and 50% chance of exhausting the flame source.
Fireball level 2 no longer increases range, but doesn't give the +3 damage.
I remember in the old days in RFiii when you switched it from +damage to +range because you wanted the second level to give something you can't get another way, at least for spells--so you went with +range instead of +damage. How about either a square (1.5) AOE, or a dynamic + or X shaped explosion? (Click to target center, move mouse to shift explosion pattern.)
I think more "dynamic targeting" would be good for 2nd level spells. Like, lightning bolt level two could target any square in range, then extended in a four or five square line from that point (probably staying within the range zone, so it doesn't extend out too far). This way you can attack more arrangements of enemies, giving back *a little* of what was taken away with the old range-targeted conducts-to-adjacent-enemies spell. (And not have the "more damage at the tip.")
Cone of Cold L2 could be like the briefly used version of burst of wind that began with a targeted space, and could be used orthogonally or diagonally in any direction. (I thought that was one of the more interestingly different abilities when it was in place.)
The ranger triple-shot ability L2 could allow you to have the left and right arrows take different angled trajectories. Mouse close to the player, and the angle is max wide (45 degrees?) mouse to max range (straight, center) and the angle is parallel/straight.