Quote Originally Posted by Nekodar View Post
3 tanks, 3 healers, 3 melee, 2 ranged physical, 2 ranged magical...
Since it's unlikely we get three new jobs, where would you put in new jobs to increase diversity? The obvious places I feel would be ranged physical and ranged magical.
Adding two ranged jobs feels out of place though, so chances are we get one melee and one ranged (physical or magical) in this expansion. Maybe a tank or healer and additional ranged in the one after... etc.
The DF outside of PVP does not make this differentiation and neither do most players.

It is 3 Tanks, 3 Healers, and 7 DPS.

You do not isolate a whole category of players unless you want the DF queues to suffer. Besides, it is unfair for healer and tank players if all the new classes are always DPS classes, same effect on the reverse, but to a lesser degree because everyone and their dog plays DPS.