I am not a lawyer, but I don’t think that it will apply to the rest of the country. District court decisions should apply only to the district in question.
One of the issues with the Federal district courts has been that some of them have issued nation-wide injunctions against the present administration (think of the incorrectly-named Muslim travel ban, which didn’t ban travel from the largest Muslim countries and did ban travel from that well-known Muslim country Venezuela). A district judge should not be able to issue a nationwide injunction.
In this case, it seems to me that the district judge found actions of the Wolf Administration to be unconstitutional. That’s pretty specific. Now, the reasoning of his decision could be cited in other cases for different states.
Unlike Roe v Wade. It also was filed in federal court and went all the way to SCOTUS/