Prince William is reportedly maintaining a close watch on his estranged brother, Prince Harry, following Harry's unexpected return to the United Kingdom for an extended period. Grant Harrold, a former royal butler, told Us Weekly that William is keen to understand his brother's "game plan" and is likely still unsettled by allegations made in Harry's 2023 memoir, "Spare."

Harrold indicated that William is not pleased with Harry's presence back in the UK. A source described the brothers' relationship as already fractured, suggesting Harry's move "does put the break in the same country." The return of the Duke and Duchess of Sussex, along with their children Prince Archie and Princess Lilibet, has been characterized as a surprise to William and Catherine, Princess of Wales.

Sources indicate that William and Kate are in a "wait-and-see approach" after their initial surprise. Any potential reunion between the brothers is not expected to be immediate or public, with one insider noting that "no one's booking a table for two for William and Harry." If a reconciliation does occur, it is anticipated to be a gradual and private process, likely on Prince William's terms.

Prince Harry and Meghan Markle, along with their children, returned to the UK last month for what is described as an "extended period." An insider stated their desire to be nearer to King Charles III, who is undergoing cancer treatment. However, a palace office clarified that the couple are in England as "private citizens with commercial and charitable interests," not as working royals.

The Duke and Duchess of Sussex are reportedly residing in a non-royal property and are searching for a home in the Cotswolds. Their children have been enrolled in a local preparatory school. The couple stepped back from royal duties in 2020, subsequently relocating to Montecito, California, and have since spoken publicly about their experiences within the royal family through interviews and Harry's memoir.