The tiger 320's are going but the vara ones are staying so the simplicity factor is reduced.
The atr 72-600 are staying, and not sure if all the 500's are going..
Only 2 -700's left but their differences are engineering related not crew related so minimal savings there.
Funny how QF can make the 717 work so their is a need in the marketplace for a jet smaller than 176 odd seats....