The gaming company has agreement in principle from the government for more gaming machines and an extension of its licence past its existing 2021 date in return to footing the entire bill of the centre.
Morrison said the deal is subject to "us being satisfied that we can generate an overall acceptable return for our shareholders."
Still, the casino operator's underlying earnings missed Forsyth Barr's forecasts as construction at the Auckland hotel reduced the number of rooms on offer and it had to cater to the government's hike in GST.
Earnings before interest, taxation, depreciation and amortisation rose 1.3 per cent to $291 million, missing the $300.6 million target, while earnings before interest and tax was $222.4 million, falling short of the broker's $229.5 million forecast.
SkyCity's Auckland operation reported a 2 per cent decline in EBIT to $158.7 million, while the rest of New Zealand slumped 68 per cent to $6.7 million.
The Darwin casino's EBIT dropped 10 per cent to $32.7 million. Adelaide's operations gained 15 per cent to $33.8 million, and the company's fast-growing international business almost doubled to $16.2 million.
SkyCity will pay a dividend of 8 cents a share, taking the annual payment to 16 cents. The shares rose 0.3 per cent to $3.51 in trading yesterday, and have gained 6.8 per cent this year.
Morrison didn't give any earnings guidance for the 2012 financial year, though he said he was "excited and optimistic about our future in Auckland," as New Zealand's economic recovery gathers pace and the Rugby World Cup injects some 95,000 visitors to the country.
The company booked a $15 million charge on its half-stake in Christchurch Casino after the earthquakes in Canterbury, and is focusing on rebuilding the business.