An affirmation of a 2nd Amendment right to bear arms outside the home is what I've been waiting for ever since Heller appeared to stop short of extending that right.
Maybe this one will.
I don't think it will. My guess, you have to allow for weapons to be transported, but you can restrict them to be licensed and unloaded. Basically, NYC says you can keep a gun in your house, but it can never, ever leave. That is a bridge too far, especially since it results in a de facto ban as you cannot transport it to your house without violating the law.