I have been anxious about this case for some time, because as others have noted, the SCOTUS is not terribly reliable about even relatively strongly adhering to the Constitution as written.
Kelo and the
McCain-Feingold Act come to mind.
However, I have taken some solace in the way the SCOTUS worded the question they will address. As a reminder:
“Whether the following provisions — D.C. Code secs. 7-2502.02(a)(4), 22-4504(a), and 7-2507.02 — violate the Second Amendment rights of individuals who are not affiliated with any state-regulated militia, but who wish to keep handguns and other firearms for private use in their homes?�
To me, the question is worded in a way that PRESUMES that individuals - not "States" -- have rights under the Second Amendment. So the basic focus of the court will be on whether the DC provisions violate those rights. That they could wander off and do something destructive is not out of the realm of possibility, but the fact that they spent some time arguing over the question to be addressed, and came up with the above formulation, is somewhat heartening.
I agree I would like a much broader, 2A-friendly result, that trashes the bulk of gun control laws and results other happy outcomes, such as the jailing of Mayor Bloomberg and the rest of his anti-citizen mayor buddies

-- but I will be happy to get a SCOTUS declaration that 2A rights are individual rights and banning or rendering guns non-functional violates them.
elb