Okay.
I just don't like the 'all actions require an additional action point.' Even if it works and is better than current.
I think my - add an on hit electrical damage bonus for people who are shocked that are hit by magic.
is more fun, because.. it's my idea of course!
If the damage is significant and it works with clouds and puddles then it has elements similar to fire but has a different emphasis (emphasis on reapplication on one target for air magic) and combos with different elements.
They could provide a paralysis condition in the air magic school if they really wanted it, but with petrify and frozen it probably isn't needed.
The proposal:
Earth provides slow on hit - has a petrify condition that causes hard CC and adds some magic/physical armor.
Fire provides warm on hit and can light fires. Condition burning causes periodic DoT and fields cause damage on contact.
Water provides wet/chilled on hit - has a frozen condition that causes hard CC and adds some magic/physical armor.
Air provides shocked/electrocute on hit and upon reapplication refreshes debuff and causes burst damage, fields cause damage through the same mechanism.
Air/Water CC from water + damage from air combos together. Earth/Fire CC from earth + damage from fire, combos together.
That and the bless changes.