for the avatar ofa au we take it one step further and have nana telling toshinori how proud she is of him, and maybe comforting him if (when?) gran torino dies
or take it one step back...
izuku unlocks that part of ofa is when he has The Dream, and one of the first things he does after that is find toshinori and let nana tell him everything she never got to say to him—that she’s not sorry for her death, that she wants him to be happy, and that she’s proud of what he’s become.
she’ll speak to him again, through izuku, and one day far away from now, she will meet him again in ofa.