perhaps. But in Illinois, the courts gave a (relatively short) time limit and the legislature had to scramble to enact the CCW law.
My bad... DUH, it was
Moore v. Madigan that dealt with Illinois CCW, not
McDonald.
Date of
McDonald v. Chicago decision: June 28, 2010 Moore v. Madigan decision: December 11, 2012
Date of Illinois issuing first CCW license: March 1, 2014
By my calculations, that's approximately
THREE YEARS AND EIGHT MONTHS. Imagine how long it would have taken had they not been "scrambling"! 15 MONTHS... not bad at all, considering how legislatures work. That did include some court ordered "deadlines" and the "deadline extensions".
Peruta litigator Chuck Michel believes that case will be taken
en banc, and then take between 6 months and two years to render a decision. IF it's upheld, maybe Hawaii CCW issues by
2020 2016-17.
?! I'll be
REALLY a bit old[er] by then!

That's assuming that IF it is upheld, that it isn't appealed to SCOTUS and accepted there, and upheld there. Add two years.
Let's hope SCOTUS takes
Drake next month and settles this issue favorably in the fall of this year for the whole country, which last I checked includes even Hawaii.