So, now Monk/Dragoon have to compete with yet another class?

[Themis]

You guys realize that nin is gonna be dex class right? So quit Q.Qing about loots

Why? You're assuming that just because they are nimble (which generally refers to dexterity or agility) that SE will change the way that stats currently work, without any other fundamental changes to the battle system.

DEX is ranged damage. STR is melee damage. Unless NIN is a purely ranged job, which it isn't, then it will be STR based.