Just saw this article on stuff
https://www.stuff.co.nz/business/95825993
Looks like they have a new menu with 20 new pizzas and sides rolling out over the next few months, and will be getting rid of Chefs Best being replaced by new premium pizzas. They will possibly make the pizzas smaller with higher price. However I guess because each store can have different prices it may depend on the area.
We were just discussing this. It's a head scratcher. The quality of the journalism doesn't help either.
The same changes have already begun rolling out in Aussie, will need to keep an eye on how things go.