NINJA and ROGUE confirmed

[Reynhart]

That's why I mentioned several other elements that would have a hand in that. If you have 6 bosses in a 24-man dungeon where 3 punish melee and 3 punish range, you have reason to bring a balanced comp. The principle that justifies the presence of a second/third tank does apply to the other roles.

That would be horrible for alliance build with the Duty Finder. Pretty much like Ifrit Hard when people left because the party couldn't use the caster LB.
And since they remove elemental resistance to no "punish" anyone, I don't see them doing something as definitive.

Because Arcanist branches into a DPS and Healer people seem to jump to the conclusion that it has to be that way with every class but it really doesn't, it would be nice if most classes could end up that way as it would really help queue times I think, but SE shouldn't try to force jobs that won't work onto classes just to try and make sure every class can fill 2 different roles.

Since most skills comes from classes, the two jobs would probably play almost the same. I don't see the point in doing two jobs that fills the same role and play the same. For example, if I want to tank as a Gladiator related job, I'll go for PLD, I don't need a second tank.