According to sources, the father of two could return to the UK from Archie and Lily, despite worrying over plans that were made for his brief visit to his grandmother last week.
Harry and Megan decided to use their own personal bodyguards from the US and were guarded by a special escort group (SEG) when they went outside.
SEG supports both members of the royal family and government ministers, providing them with mobile armed protection, according to the Daily Mail.
Security details will be funded by taxpayers after the Home Office said they could not agree to private financial arrangements with anyone who uses Met Police security.
Harry is launching a lawsuit against the Home Office after his armed police defenses were taken away.
In a statement to the PA news agency, his legal representative said then: “The UK will always be Prince Harry The home and country in which he wants his wife and children to be safe.
“The Duke and Duchess of Sussex are personally funding a private security team for their family, but that security cannot replicate the much-needed police protection needed in the UK.
“In the absence of such protection, Prince Harry and his family cannot return to his home.”
A source told the Daily Mail: “Harry was quite pleased with the way the operation went [when he and Meghan came to Windsor] and the link between his security group and Met.
“He believes that this means that a workable solution can be found that will allow him to come with his children after the Platinum anniversary.”
The insider also said they believe Harry will overturn his trial.
A spokesman for the couple had previously said they were funding a “private security group” but their own security service “could not replicate the necessary police protection” in the UK.
Harry’s team claims that its private bodyguards will not be able to provide the same level of police protection that the UK offers.
The Duke appeared on the Today show in the US earlier this week and shared what his recent visit to the Queen was like.
Asked by Honda Cott whether he was going to celebrate the anniversary, Harry said: “I don’t know yet, there are many things – security issues and everything else.
“So that’s what I’m trying to do, trying to make it possible so, you know, I can get my kids to get to know her.”
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