I mean only 11 players in NBA history have made it to age 41 and Nat Hickey is the only one to hit 45 and he was the coach of the 1947-48 Providence Steamrollers who had some injuries so he played in 2 games. Heck only 31 players have ever hit 40 while still active. They actually tend to be HOFers that are still credible role players, but no where near all star level players (for the most part).
Lebron would be the guy that could do it if anyone could, given he will likely be an all star in his 20th season this year.