If I would add one suggestion it would be to add intelligence bonus to damage for the wizard evocation spells and cantrip's.
I was just reading some 5e stuff ... and look what i have found.
Empowered Evocation
Beginning at 10th level, you can add your Intelligence modifier to one damage roll of any wizard evocation spell you cast.So ... i would say that you will get what you want, it would not just be so soon.
