Cup defenders Oracle are expected to launch their first boat in the next few weeks, but have scuppered plans to sail it in New Zealand this summer.
Oracle had originally planned to train out of Mardsen Point in Northland, but have said their emphasis in their "boat testing and development cycle" has changed.
"Extending our summer and fall training session in San Francisco effectively closed the New Zealand window," says team general manager Grant Simmer.
"The merits of Marsden Point as a sailing venue have not changed; it is only our priorities that have changed."
Meanwhile, the pieces of Team New Zealand's giant catamaran have finally locked together, with the 12-storey tall wingsail slotting into the boat's platform at the team's Auckland base yesterday.
The 40m high, fire engine-red wing has been assembled in a huge tent over the last three months, while the 22m long, 14m wide hull platform of the AC72 - the new generation of America's Cup yachts - was finished off in a tent next door.
A mobile crane was used to carefully lift the wing onto the platform of the first of two catamarans Team NZ will build for the 2013 America's Cup.
The wing would undergo four hours of load testing this morning before being removed from the multihull and safely stored away before Saturday's official launch.
Although the boat will be christened at a public ceremony in the Viaduct Harbour on Saturday evening, it is likely to be lowered into the water in the next two days.
Then the tight testing schedule begins. Under new cost-containment rules, the first AC72 can only be sailed 30 days between launch and January 31.