Kensington Place have formally confirmed that the Duke and Duchess of Cambridge will embark on a visit to the two countries next year, and aides have said it is "anticipated" that George will accompany his parents on the trip.
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"Clearly it is hoped and planned that Prince George will accompany them but being new parents and the trip being several months away yet, a final decision will be made nearer the time," said a source.
If he does make the journey Down Under, little George will be eight months old and making his first official overseas tour.
The tour would mirror his father's early life; William was nine months old when he joined his parents Charles and Diana on their official tour of Australia and New Zealand in the spring of 1983.
It will be the first time that Kate, 31, has made an official visit to either country — she and her husband were in the media spotlight when they flew to Brisbane airport to catch a flight home at the end of their South Pacific tour in September 2012.
William was last in Australia and New Zealand shortly before the couple's spectacular wedding in 2011, visiting areas affected by the earthquakes and floods.
Kensington Palace confirmed the couple's visit but released no further details about the itinerary or how long it would last.
It said in a statement, "The Duke and Duchess of Cambridge will visit New Zealand and Australia in April 2014.
"Their royal highnesses have been invited to visit by the New Zealand and Australian governments. Further details on the exact dates and itinerary will be issued in due course."