My Mrs just came up with a scenario - what if this was not planned but an emergency event from which Kate did not recover. As a result of losing his mother as a youngster he announces that he will devote his life to his children and will not take to the throne and will step himself and his family out of the line of accession to live a quiet life when his father the King passes. Would that mean following the line if he would accept would that make Harry the Spare next in line? If so she said - "imagine the piss that would boil in some quarters. Queen Meghan anyone?"