Welcome to our little corner of the internet Gene.
(For those unaware, Gene Hoffman is the Chairman of the Board of Directors of the CalGuns Foundation
However, the problem as I see it is that a major IL law has been struck down and Courts always take this as serious business. Because of this the court is more likely to grant a rehearing than not.
Best case scenario is that the Court will not grant the request and Judge Posner's decision will stand (until Madigan files for cert).