In his recent interviews he said that he wasn't sure if he'd play next year, and he'd need four or five more very good seasons to get to 3700. So that seems really unlikely.
What do you mean by "Hank Aaron's still undefeated 3700+ range"? (Actually, 3771.) Both Ty Cobb and Pete Rose had well over 4000 hits. But Hank is the all-time leader in home runs, RBIs, extra base hits, and total bases.
