If they rule in favor of Emerson, that his 2nd Amendment rights are violated, this will set up a Supreme Court precendence that will allow most any of the thousands of federal gun laws to be challenged and also be "shot down". It will set a precedence for challenging all sorts of unconstitutional federal government.
If they rule against the 2nd Amendment, interpreting it as the gun grabbers do, that it really doesn't mean what it says, then patriotic, constitutional Americans will finally have to admit, once and for all, that our American form of government is surely lost, that OUR GOVERNMENT DOES NOT REGOGNIZE OUR INALIENABLE RIGHTS, and in my opinion, that this cultural divide will inevitably accelerate, expand, and lead to eventual Civil War II.
I think a Supreme Court ruling of this type is way overdue. It needs to happen so we can dispense with the cat-fighting over semantics with the gun grabbers and liberals, and start work on what is necessary to end this out of control socialist federal monster, whether it be through more Supreme court wins (my hope), or if necessary, by asserting our 2nd Amendment rights (I fear may come).