Please do not lock Jobs to the Weapon Class that unlocks them.

[Cairdeas]

But then this brings me full circle, if they implement War Scythe and Great Sword then they will need 2 more jobs on each. I say 2 jobs per class as with CON looking to go WHM/BLM that seems like what will happen.

There is no rule that says how many jobs each weapon unlocks or when yet. So it isn't full circle. If one weapon unlocks multiple jobs Sword alone would unlock a possible 10 jobs