I believe is SCOTUS doesn't hear it, than the 9th circuit ruling stands.
That said, this law is still illegal. If not by US law, then by my law.
Patience Dan, the DC case is winding its way through the courts. A much better case for our side. Of course if SCOTUS rules that the RTKABA is not an individual right, then some tough choices will have to be made.
A march on the Supreme Court by a couple of million gunowners during the oral arguments would be a nice choice though, for starters.