The upshot of this approach is that the Court could add another Second Amendment case to its docket, with an argument scheduled for March or April.
Indeed, there are many gun cases that are fully briefed, that have been hanging in SCOTUS purgatory for months. There was obviously some appetite to weigh in on the Second Amendment, after nearly a decade of silence following
McDonald v. Chicago. A quick DIG would allow the Justices to address another live case now.