Rather than expanding the list of spells available for each school, i would like to train in another school.
At level 50 in life school, i could go to the fire school and begin learning the special school only spells in it, and gain the benefit of power pips with spells in that school.
This could take us up to level 100 instead of just a tiny bump up to 60. And the game designers would not have to make any new spells. Although i would LOVE to see some dual school spells. Life and Balance wizards can learn a unique spell while Fire and Storm wizards would learn a different spell at say level 100.