Yes but don't forget that Jetstar Pacific and Jetstar Japan are responsible for their own aircraft orders i.e. they don't take aircraft from that 110 order and order direct from Airbus for themselves.
I don't think that is quite correct. Their aircraft do not live on the QF Group books and are said to be owned by JQ Pacific or JQ Japan, but they are sourced from big brother JQ in Australia.
This is a quote form the JQ website again:
Jetstar Japan has finalised arrangements with five lessors that will purchase and lease 24 new Airbus A320 aircraft that Jetstar Japan will receive in the next three years.
All of the aircraft have been sourced through the Qantas Group’s existing fleet orders, allowing access to early delivery slots.
Jetstar Japan completes leasing for 24 aircraft