Buckingham Palace aides were still in the dark this week over Prince Harry and Meghan Markle's plans for the Queen's Platinum Jubilee celebrations.
The couple is due to arrive in the UK today with their children three-year-old Archie and Lilibet, who turns one on Saturday, to take part in the events.
However, it is still unclear exactly which Jubilee celebrations they will attend and if their young children will join them.
It is thought they will attend the St Paul’s Cathedral thanksgiving service on Friday and potentially the Jubilee pageant on Sunday.
Celebrations kick off tomorrow with Trooping the Colour, but the Queen has ruled that only working members of the family will be allowed on the Buckingham Palace balcony for the traditional fly-past.
Courtiers have suggested there is “nervousness” over the Sussexes’ arrival after reports they are in talks to film a reality show about their lives in the US.
Camera crews from Netflix, which the couple have a £100million production deal with, followed them during the Invictus Games in April.
However, sources have said the couple does not plan to detract from the Queen's celebrations - and that they will not be bringing Netflix cameras with them.
One source said: "There has been further contact between the Duke and members of his family, but any talk of them planning to cause a scene or detract from the Queen’s celebrations is nonsense.
Love the royals? Sign up for the Mirror's daily newsletter to get all the latest news on the Queen, Charles, Kate, Wills, Meghan, Harry and the rest of The Firm. Click here to sign up .
"They are here to see family and enjoy what will undoubtedly be an incredible moment in history.”
While sources close to the couple said it was “ludicrous” to suggest they would bring the Netflix cameras with them, adding: “They aren’t even bringing a press team. It’s all very low key.
“Whoever is being hysterical needs to have a cup of tea and calm down.”
Their arrival in the UK comes after Harry received “cast-iron assurances” that his family will be protected by specialist police when he touches down in the UK today.
Harry and Meghan are said to be flying in with their own personal security detail but will become the Metropolitan Police’s responsibility when they land.
It will be only the second time Meghan has returned to the UK in more than two years since the couple dramatically quit their royal roles in 2020.
Security sources have revealed the Met’s Royalty and Specialist Protection unit has spent weeks liaising with the prince’s team and guaranteed taxpayer-funded officers.
Harry, 37, has been embroiled in a legal row with the Government over a Home Office decision to strip him of his UK security.
A source close to the Sussex camp said: “For Harry, this has always been about protecting his family.
“He has been in constant contact with the relevant parties and made it very clear that he wouldn’t travel without receiving cast-iron assurances over the safety of his family.
“He is satisfied the right procedures are in place and they are all very much looking forward to this week’s celebrations and of course getting to spend time with Her Majesty.”
The Queen has never met Lilibet, who is named after the nickname affectionately given to her by her grandfather King George V, and has only met Archie a handful of times as a baby.
The Sussexes will be staying at their Frogmore Cottage home on the Windsor estate and are understood to be throwing “Lili” a birthday party on Saturday, which the monarch may attend if she misses the Epsom Derby.
Pick up your collectors edition OK! Magazine Platinum Jubilee Special - in all good newsagents and online now for just £9.99.
