The Promise of Class Uniqueness

With Yoshi P's promise of new class uniqueness and having your class fill a better role in a party.

1. How will this affect the feature of being able to customize your class with most abilities from other classes? Will it be replaced with a sub job system? Or maybe a having 2 sub jobs instead of one?

2. Will there a be an overhaul of change to each classes set of abilities and skills to better fit that classes role?

3. What about a 2hr ability?

All these questions have never really been brought to light..

What are your thoughts?