After a second read of the draw, only one game at Sky Stadium between January and the beginning of March would be pretty annoying. I know most will probably not agree but I actually am still okay with a game at Wollongong, having it immediately after the World Cup is just not great timing though. Of the venues yet to be confirmed for the Jan- beginning of March fixtures, I hope two are at Sky and the third one is somewhere other than Eden Park that the Phoenix haven't played at in a while like Forsyth Barr. If it is available that is.
Nah EP is now well proven as the 2nd venue of choice for the Nix in NZ. It's been a commercial success there for Welnix, since nearly 24,000 turned up to watch Rudan's Nix draw 1-1 with the VUC in Feb 2019.
Forsyth Barr is a fantastic stadium but you take a Nix game there Dec-Feb without the scarfies in town, and many of the locals holidaying in Central Otago, and you may only get 5,000.
You also have the additional costs of no direct flights into Dunners from Aussie etc to contend with. You would have a small window around late February (Uni Orientation week) when hosting a game there would likely draw a big enough crowd to break even/make a small profit. Otherwise Welnix loses yet more cash.