More than likely he tries next year but achilles tears at 40 is tough, that's super late in the gameHe signed up for a couple years. He's not quitting after his first long term injury... Aaron Rodgers now has motivation for a comeback to prove people wrong.
There was some difference in KD's athleticism after it but he came back mostly the same except he's missed time each year since with leg injuries, he can't stay healthy anymore
KD was a decade younger when he tore his and doesn't play a contact sport. If he's the best case of a recent recovery and he's regularly missing games after it, it ain't looking too good for Rodgers in his 40s, already injury prone, and getting hit is part of his sport