I'm just catching up and reading the end of the last thread, I had a couple of thoughts:
Firstly PC mentioning 6 in his essay destroys any claim by 6 that his father is not proud of him. Doesn't mean he's forgiven or will be allowed back.
Secondly, much as I loathe, him TB needs to be knighted before he or TQ dies. He's the bottleneck stopping subsequent PMs getting honours.
If TB carks it, TQ can't go on a knighting spree for all subsequent PMs without looking spiteful and if TQ dies before knighting him, Charles isn't going to want to over-ride his mum's wishes.
Bojo won't want to risk the unpopularity of being the one to recommend the knighthood so it's down to TQ to take one for the team.