I would love it if Zenimax added a 3rd morphing option to at least the class and weapon skills.
That way we could have 3 options to focus on one of the 3 elements, fire, shock or frost.
Example: I would love my templar to be able to focus more on fire damage. So it can profit some more from the fire damage armor sets. Later also frost or shock armor sets can be introduced to the game.
For sorcerer you could have the option to modify the base Lightning form into Elemental form and with 3 morph options to change it into either fire form, frost form or lightning form.
With 3 morphs it would also make class and weapon skill lines stand out more and be more important against the other skill lines.
Honestly we can make beautiful builds with 3 morph options. Think about all the possibilities.
The simple one.