In a written message released to mark Commonwealth Day, the monarch, 95, said it had given her “pleasure” to renew in her Platinum Jubilee year the promise she made in 1947, “that my life will always be devoted in service”.
That, I think, puts an end to any thoughts of her stepping down in favour of Charles. Following the publication of her wish for Camilla to become Queen Consort when Charles becomes king, it seems she is putting her affairs in order and leaving no room for speculation. Wise lady.
https://www.thetimes.co.uk/article/queen-to-ease-off-on-large-scale-events-before-platinum-jubilee-zzldptnpc