Mr Arbiter told The Royal Beat: “They are not going to rubbish the Royal Family, because it is not in their interest.
“So they will talk about the ‘suits’, how the officials didn’t back them up.
“They will certainly talk about what they are aiming to achieve; they will talk about family life, babies, and motherhood.
“They will talk about the British media because that sticks in the craw as fair as they are concerned.”
Meghan and Harry’s Oprah interview reportedly took place last Tuesday.
Ms Winfrey is said to have spent two days with the Sussexes filming the interview.
The primetime show is scheduled to air on CBS on March 7 at 8pm for the east coast of America.
For those in the UK, the programme will be live at 1am on March 8.
“They are utterly aghast.”
During their Oprah interview, Meghan and Harry are not expected to talk negatively about the Cambridges.
Another source told Us Weekly: “They won’t talk negatively about Prince William and Duchess Kate.
“They don’t want to put any more fuel on that fire.”
