Ben Whishaw thinks Bond 26 could wipe the slate clean, meaning he may not return as Q when a new actor takes on the role of James Bond. James Bond is one of the most popular and longest-running film franchises, beginning with Dr. No in 1962. Traditionally, a new James Bond actor would take over the role without acknowledging the change on screen. No Time to Die made history as the first Bond film to kill off the superspy in the final moments of Daniel Craig's tenure. However, this is not the end of Bond, with a hunt for the next James Bond actor underway, but it does mark a shift in the franchise.
https://screenrant.com/james-bond-q-actor-expects-replacement-bond-26/