Kate Middleton and Prince William may be asked to continue to fill in along with other royals as the Queen may continue to rest over Christmas.The Duke and Duchess of Cambridge have already been seen taking the reins at the Royal Variety Performance and during the Remembrance Day service.It is now believed that the duties for organising the festive period for the royals will fall on Kate and Prince William’s shoulders.The Queen has returned to light royal work since her health scare and overnight stay in hospital.However, following her back injury forcing her to miss the service on Remembrance Sunday, Her Majesty may pass duties onto another family member.As reported by The Express, Sandringham is the usual place for the royal family to.