As of 5 minutes ago, Alan Gura had not filed. He has until midnight.
01/23/2013 62 Filed Response in Opposition by Appellants Illinois State Rifle Association and Mary E. Shepard in 12-1788 Attorney Charles J. Cooper to DEFENDANTS-APPELLEES' PETITION FOR REHEARING EN BANC.  [12-1788, 12-1269] (Cooper, Charles)
I'm reading it now. Here's a look at the TOC:
I. THE PANEL DECISION’S HISTORICAL ANALYSIS ACCORDS WITH HELLER AND SEVENTH CIRCUIT PRECEDENT AND DOES NOT CONFLICT WITH DECISIONS OF OTHER CIRCUITS.
A. The Panel Decision Comports with Circuit Doctrine.II. THE SCRUTINY APPLIED BY THE PANEL DOES NOT CONFLICT WITH SEVENTH CIRCUIT PRECEDENT OR THE DECISIONS OF OTHER CIRCUITS
B. The Panel Decision Does Not Conflict with Decisions from Other Circuits.
A. The Panel Decision Comports with Circuit Doctrine.CONCLUSION
B. The State Bears the Burden of Proof.
C. No Remand for a Trial on Legislative Facts Is Needed.
The PDF is 18 pages.