Alito is only a couple of years younger than Thomas, but has over a decade less service on the Court. He will likely want to stay on until at least near the end of Trump’s second term so he will have a grater legacy of opinions. Thomas has made an impact for a long time already, and once freed from any inhibitions he may have while still sitting on the Court, he could provide a great commentary on the Court and politics of personal destruction by the Demoncrats.
Have you read his memoir?