How can they add more classes and make them unique and have their own flavor?

[Zied]

maybe rdm is based around enhancing the sword with elements , fire make insert here 3 combo chain (death blossom) put a dot , Ice make it snare the enemy , earth make it do -10% dmg , lightning make it take 10% more dmg , light rdm gets healed , dark make it blind the enemy.

sam , who knows...a stance for fast attacks that regen tp, another for slow but high attacks drain lots of tp, and u change from one or another similar to BLM but instead of MP ,TP.....

Hmm, maybe RDM or some magic enhanceing physical class can use both MP and TP

Since RDM is also known for healing, maybe they can have an aero/water/or aether themed enhancement that can AoE heal on attacks and a chance to proc protective buffs