I have the same hopes. If the law is struck down and broadly interpreted NJ gun owners may finally be able to stop at a restaurant and leave the unloaded and locked handgun in the trunk of their car while they have dinner.
It would be a small win but I would take it.
My understanding is that if SCOTUS rules against NY it isn't the ability to transport guns per se that would benefit us, it is the fact that the decision will very likely be with the declaration that laws restricting the Second Amendment would be subject to strict scrutiny for judicial review rather than just intermediate scrutiny.
If that is the case, then it would be huge. Every case of appeal to NJ's gun laws could potentially overturn those draconian laws we are held under.