One revised option is to reclaim 179m of the harbour to extend Bledisloe Wharf.
Auckland councillors are being urged to effectively dump a review of port development options in favour of fast-tracking the latest expansion plans into law.
Following last year's Herald campaign against further reclamation of the Waitemata Harbour, the council promised to model a range of development options for the port. The work was intended to look at port operations, transport issues, the port's effect on the city's urban form and alternative port locations.
The results were not expected to be completed in time for the council's unitary plan, to go out for formal notification in September.
Instead, it was anticipated that any future plans to reclaim more of the harbour would have to go through a separate process after the unitary plan becomes law in 2016 or 2017.