Quote Originally Posted by Malevicton View Post
You pretty much answered yourself in the first sentence. Rogue effectively is a thief class by a different name. Are there still differences in specialization? Sure, but enough differences to merit a whole new class or job? Not really. Could you force enough differences to make it possible (like with your "epitome of thieves" or "Phantom Thief" examples)? Again, sure, it's possible, but what's really the point? Whether you call it thief, ninja, rogue, or flibbertygargen, the point is that they're putting all of the thief-ish mechanics that they want into this one class. There's still technically room for a similar class, but there's much more creative maneuverability in keeping different jobs distinct. There are people like yourself that would enjoy a different type of thief/ninja class, but having an entirely different class (aka the gun class) will appeal to more people and allow for far more variety overall.
SCH and SMN can answer your question, yes there could be enough skills to play the same class in a different way, while ninja looks more like a melee/mage hybrid Thief can be more of a melee oriented, with classic skills like sneak attack, I remember in 1.0 a skill that could exchange hate from one player to another, there's a lot of stuff they could add to make it feel different.