"Nothing stops him from launching a challenge from another country, eg, France or Spain."
Ehman said Bertarelli had recently been elected to membership in the New York Yacht Club.
"If the Kiwis come up with a formula that truly makes campaigns more affordable than they are now, there could be another AC Renaissance like we saw after Australia II won the Cup in 1983."
There were 17 teams in Fremantle - four defenders and 13 challengers, six of which were from the USA. The size of the event made Conner's epic 1987 comeback that much more popular with fans all over the world, not just in the USA. The large number of teams, and the international flavour they imparted to Perth - often called the most-remote capital city in the world - is a prime reason why many call 1987 the best Cup in the modern era."
Emirates Team New Zealand is likely to bring the event back to Auckland in 2021 or as late as 2022.
"The venue will not be in the UAE as some have speculated. Indeed, it is not even clear that, given the world's present political situation and with all the complications presented by the Middle East, that Emirates Airline will be back as the Kiwis' title partner," said Ehman.
He speculated that racing could be held in the inner harbour, not the Hauraki Gulf.