Well the trial one is just most of the way up Brooklyn hill, and the proposed one would expand it to connect it to other ones according to the article.
It also talks about upgrades to what's there already - at the moment its just part of the existing roadway blocked off with plastic bollards and those curb segment things bolted to the surface. It could be referring to something like what they're doing on Thorndon Quay, where the cycle lane is actually going to be grade separated from the roadway at the level of the footpath, not sure.
Its a shame it's not going ahead because a connected up network is what's really needed for cycling to be a safe enough option for many people.
Totally, the party that claims to be all about freedom of choice is shutting down choice of transport options