I blogged about this case here, and predicted the Court would deny cert. Brian Doherty lists a number of Second Amendment cases the Court has declined to take from McDonald. and Winters v. Willis is among them. Two petitions are still pending:

Perhaps one of the two remaining Second Amendment cases pending before the Court that we are aware of (United States v. Portillo-Munoz, 643 F.3d 437 (5th Cir. 2011), petition for cert. filed, No. 11-7200 (Nov. 2, 2011) (a challenge to federal law prohibiting gun possession by illegal aliens) or United States v. Booker, 644 F.3d 12 (1st Cir. 2011), petition for cert. filed, No. 11-6765 (Oct. 3, 2011) (a challenge to federal law prohibiting gun possession by persons convicted of domestic violence)) will become the case that settles some of the issues that remain outstanding in the wake of the Heller ruling.