Mr Packer split from his model and singer wife Erica Baxter, who hails from the same small town as Ms Kerr, in September.
James Packer split from his wife Erica Baxter in September.
The estranged couple were married for six years and have three children together - Indigo, 5, Jackson, 2, and Emmanuelle, 1.
Mr Packer was named the third most wealthy Australian with an estimated wealth of A$6 billion ($6.68 billion) by Business Review Weekly in May, and the sum was expected to rise to A$7.7 billion by last month.
He chairs Crown Limited, Australia's largest casino chain, and is the son of media mogul Kerry Packer and grandson of Sir Frank Packer.
He inherited the family business, Consolidated Press Holdings.
The family started newspaper business Australian Consolidated Press in 1936 and branched into television in the 1950s - airing the country's first television station.