Lyttelton has capacity issues in its terminal, so Maersk have decided to use the retiring Maersk Nadi and Maersk Nansha to load containers for Asia at the end of their NZ service. They will load direct from Timaru and Nelson on their repositioning voyages,, reducing demand their usual tranship arranegment will incur, and also the Southern Star service (Rio's) will now have a fixed berth window at Lyttelton to improve Maersk's schedules.
Rangitata is now making 1 or 2 voyages per week between Napier and Gisborne for export containers. The Wairoa Road won't re-open for several months which is presumably the duration of the service. That said, the Napier/Taupo road was originally going to be closed for "months" but re-opened in 5 weeks, so possibly a similar result may change this fixture as well.