I don't see much chance of anything making it through the front door (at the legislative level), but there are plenty of back doors available.
Note the recent EPA push to ban lead in small arms ammunition.
Remember the efforts of the Consumer Products Safety Commission to regulate firearm and ammunition sales.
Keep in mind the huge increase in Special Occupational Tax (license fees) for FFL holders just a few years ago.
Can you forget the proposals for safe storage of firearms (disassembled, locked up, ammunition stored separately under lock and key)?
Look at all the proposed regulations in Washington, DC (following Heller) and Chicago (following McDonald). Licensing of owners, registration of firearms, limitations on firearm types, magazine capacity, training requirements, huge license and registration fees with annual renewals at exhorbitant rates, etc, etc, etc.
Take a peek at the new regulations being adopted now in New York City. A couple of traffic tickets? Denied. Late payments on your credit card bill? Denied. The list goes on and on.
Don't overlook the UN Treaty on Small Arms. If ratified, this will not only require owner licensing, registration of all firearms, regulation of all transfers, strict restrictions on weapon and ammunition types and quantities, mandatory licensing of reloading equipment and reloading of ammunition, and a dozen other restrictive provisions.
This battle will never be over, only the methods of engagement have changed. Since the Heller and McDonald decisions the focus has shifted to "reasonable controls", with no real guidance from the Supreme Court. There will be a constant onslaught of "reasonable controls", each requiring a court battle to mitigate the effects of what the anti-gun crowd dream up as "reasonable".
