Which class do you want added into the game the most?

[Exstal]

Thief would be a Rogue with 5 new abilities to make it into a Thief. I've said this before but just because SE didn't want thief as a class doesn't mean it won't be a job. They left the doors open at E3 by mentioning that Rogues were once thieves so imagine 5 new abilities taught to us by an elder master Thief who rejected the new lifestyle Rogues would achieve

On topic: I'd love to see Samurai but would mostly want to see Thief or Blue Mage

No, Rogue is Thief.

Proof

Truthfully, I wanted the job to be called “Thief,” but the development team wouldn’t have it (laughs). You see, there are guild headquarters in each city for all of the different classes, but if we had a class called “Thief,” it would have to be some kind of underground organization since it wouldn’t make sense to just be out in the open and it would be difficult to include in the main scenario. I told them, well, Limsa Lominsa is a port town and it was once overrun with pirates (laughs)…. but as Thancred pointed out, to properly organize it, the guild would have to be recognized by the nation at least to some extent, and it would be strange if they kept calling themselves “Thieves.” Also, the dual wielding nature of rogues is a form of martial arts that has some respect among Eorzeans, so we intended Rogue to be the Thieves of today.

Written proof

The English translation goofed, Naoki never said "job" but the English shows that he says that.