With Origin Pacific doing pretty well, it looks like the French ATR series may be eyed as a replacement to the leased Dash-8's currently operated primarily on Qantas codeshare routes. This makes some good sense for the sucessful regional airline who operates both the -100 and -300 Dash-8 wet leased, especially due to the presence of maintenance facilities from Mount Cook for the ATR.
Even with a few J41's in the fleet, it is not uncommon for the Dash to fly in place of the J41 on hops to Wellington and other Qantas destinations. The dash while being a good solid aircraft is still one of the more expensive 40 seaters (refering to the -100) in operation on seat-mile, and Origin's move towards the economical J31/J41 series is indication that operating costs near the top of the agenda.
The ATR-72/ATR-42 series would replace the Dash on services to CHC-WLG, CHC-ZQN, WLG-ROT, CHC-DUD. The new WLG-HLZ could also see room for a larger aircraft.
I wish Origin all the luck in the world, they are one of the few sucessful airlines in their own right in New Zealand - their move to codeshare rather than fly the Qantas colours have bought them the best of both worlds. The independance to operate away from "big brother", but really some key routes in New Zealand such as the Christchurch - Queenstown, Christchurch to Wellington and Christchurch to Dunedin. Qantas are working the trans-tasman and AKL-WLG/AKL-CHC routes hard, and with the demise of AN, will likely hold off on new routes in NZ until summer (with the likely exception of Queenstown as per normal).
Where do Origin go from here?