Prince Archie and Princess Lilibet, who remained in Montecito with their grandmother Doria Ragland during their parent's Nigeria trip, could join Prince Harry and Meghan Markle on their next international tour.
The Duke and Duchess of Sussex could look to bring Archie and Lilibet on their next overseas engagement, according to royal commentator Richard Fitzwilliams.
Fitzwilliams told GB News: "They could take their children on tour if they wanted to. The Sussexes spring surprises, they are obsessed with privacy, there are aspects of that have proven to be hypercritical as we know by the way they have attacked the royal family.
The expert went on: "They guard their own privacy but have shared details when they have wanted to, we see that in the Harry & Meghan documentary. It will be interesting to see how and when their children appear."
During their time in the Commonwealth country, the Sussexes provided updates on their children and Meghan opened up on motherhood.
The Duchess explained how she balances work with motherhood and gave rare update on her private life with husband and kids, saying: "We're just doing great. And happy to be watching our family grow up and evolve. Of course, I'm happy. We're really happy."
Harry and Meghan's next international trip has not been revealed but some experts believe the couple have a list of countries to visit in the future.
Some royal commentators have urged the King to step in after fears were raised over the safety of Harry and Meghan's unofficial 'royal tours'.
Meanwhile, another royal expert Richard Eden spoke out about the potential diplomatic risks that come with the couple making these trips on their own times, telling Palace Confidential: "Harry made a comment about this [trip], it could be the first of many...I've been hearing mutterings in diplomatic circles here that there is great concern about this."
"It's very dangerous. You've got Harry and Meghan potentially visiting countries without that control that we have, any trips by royals are organised by the Foreign Office," the expert added.