It's very, very unlikely. Almost the only reason teams use the dl is to add someone to the active roster. With September roster expansion, the active roster expands to 40, so teams can bring up anyone on the 40-man -- there's no advantage. The only exception is that by adding somebody to the 60-day dl, you could add someone to the 40-man roster. (Say, a player outside the organization, or someone on the rule 5 bubble -- someone who you want to try out.) Then you might do it. But that's rare. Most players who are hurt in September just stay on the active roster.