From midnight, areas outside of Auckland will move to Delta Level 2, which has several tightening of regulations to the status of the level 2 the country has been placed in previously.
But Auckland will remain in Level 4 for longer as fresh community cases of the deadly Delta strain continue to be recorded in the country's biggest city, and amid 33 mystery cases of Delta which are yet to be linked to other cases.
Today's 1pm press conference from the Beehive will feature both the daily case numbers, and also an update on vaccination roll-out, including the potential confirmation of a deal to purchase a large number of Pfizer shots.
Given the country's dwindling stocks of Pfizer, health bosses need a large shipment of Pfizer to maintain the current pace of the roll-out programme.
This morning Covid-19 Response Minister Chris Hipkins told Newstalk ZB's Mike Hosking a supply deal would be announced at some stage this week. But he wouldn't specify when.
The Delta variant is a highly contagious SARS-CoV-2 virus strain.
Prime Minister Jacinda Ardern also confirmed this morning the deal would be made public by Friday at the latest.
Canada has previously been strongly mooted as the country New Zealand is set to get the urgent extra stocks of Pfizer from.
Today Hipkins said a multi-country deal "could well be" announced today.
"It could be within the next 24 to 48 hours," he said.
"I'm aware that other countries announce these things before there's a signed deal ... until we've got absolute confirmation we won't announce it."
It wasn't just a case of one piece of paper, multiple bits need to be signed by different people and they were "absolutely confident of when vaccines will arrive".
Of more concern was the still high number of confirmed Delta cases which have not been able to be linked to earlier cases in the outbreak.
Hipkins said they didn't necessarily need to know where every single one came from but if they were still seeing a high number of mystery cases each day then that would be a concern.
Ardern has said she was still concerned about the prevalence of mystery cases.
One of the mystery cases is the person who went to Middlemore Hospital at the weekend infected where the exact source hasn't been identified.
High-profile epidemiologist Professor Michael Baker also said while it was pleasing the daily confirmed new cases of Delta had dropped in recent days to being in their 20s, it was of concern that mystery cases still remained.
He told AM Show given the current situation, it was "absolutely certain" that Auckland's Level 4 status would be extended beyond next week.
But he remained optimistic that the Delta variant could be eliminated from Auckland.
Baker also told TVNZ's Breakfast that he hoped level 2 was "short term" and the country could get back to level 1.
He and other researchers had called for a more stepped level system which would allow for some looser restrictions at the lower levels.
"It is what it is but...I think there is room for improvement there."
