On the topic of things Roxy says in late part 4 that lay the foundation for post-Canon, I really like that conversation in A6A6I5 where, in describing the situation with the two Calliopes, he basically gives an elevator pitch for the Epilogues:

ROXY: so this seems like
ROXY: an example of what i was just sayin actually
ROXY: the story of the two callies
ROXY: neither is really "more important"
ROXY: and your timelines cant really be described as the good one or the bad one
ROXY: there were good and bad things about both ways stuff went down and different qualities to the people you became
ROXY: her life sounds like it was harsh and lonely in its own way
ROXY: but it sorta paid off cause she got to beat her brother
ROXY: but then got arbitrarily punished for that outcome because it wasnt supposed to happen??
ROXY: and then finally u meet her and "free" her or something so she presumably gets to go off and do... something badass???
ROXY: then theres you
ROXY: who had probably an even more challenging upbringing gettin so hassled by your bro
ROXY: and he killed you i guess because the way the deck was shuffled he had the edge this time
ROXY: but the upshot was you got to have all these great friends who cared about you
ROXY: and it helped you become the nice person you are who means a lot to other people
ROXY: and now
ROXY: you get to live whatever kind of life you want and be completely free from all the crummy stuff you grew up with
ROXY: who cares if you arent as strong as her or dont have the wicked powers she does or some "important" mission to do
ROXY: you both came from perfectly legitimate realities and IMHO you are both equally valuable
ROXY: and both of those realities seem to be tied together
ROXY: she cant do her mysterious badass thing unless you make it all the way through your journey and free her
ROXY: and your reality was the thing settin the stage for this huge multiversal vortex of problems which after a kajillion fuckin EPOCHS she was always meant to resolve in some way
ROXY: and that doesnt mean your life was like... a means to an end in a big cosmic sense
ROXY: i think its more like...
ROXY: you ARE the end, or one of the ends
ROXY: you and me and everyone who made it and everyone who didnt
ROXY: so that means you dont have to be able to do a lot of super special shit to validate your identity as the real version of yourself
ROXY: the only validation you need is being who you are cause no one can be that person but you!

(/7694)