Following the accession of Charles III, planning for his funeral began "in earnest" on 20 September 2022, the day following the Queen's state funeral.[2][5] As of 2024, details for Operation Menai Bridge continued to be regularly updated and reviewed, in light of Charles's diagnosis with cancer that year.[5]
A 2024 biography of Charles III by Robert Hardman claimed the King's funeral arrangements have "been upgraded to Operation London Bridge, mirroring those of Elizabeth II". Planning for Charles III's funeral arrangement began shortly after his coronation held in 2023. The biography also claims that the codename Operation Menai Bridge was used for William, Prince of Wales, replacing the codename previously used, Operation Clare Bridge.[6]