I got an email from them on what they are going to be returning to once we hit level 2:
It is important to be clear that during Alert Level 2, we will be running a limited schedule of only around 20 percent of our usual domestic services. We are excited to be returning to Queenstown, Invercargill and Blenheim in the South Island and Rotorua, Gisborne, Palmerston North, New Plymouth, Hamilton, Whangarei and Kerikeri in the North. This comes on top of the current services we’ve been offering to support essential service travel to and from Dunedin, Christchurch, Nelson, Wellington, Napier, Tauranga and Auckland.