MEL/AKL has lots of VA/NZ flights - currently 25/week using B738, A320, B772 & B773 aircraft.
Are you suggesting that TT would take over some of these ?
We don't think so, but maybe AVV/AKL or CBR/AKL ?
Think VA/NZ would only want TT to take over very poor performing routes, or poor performing times of the day or back of clock where they might get better aircraft utilisation without any extra aircraft required.