My prediction is that both Pennsylvania and the federal government will appeal this ruling to the Supreme Court asking for cert. I think SCOTUS will grant cert to both Snyder and the state case, and combine them since they are so similar. The petition by the federal government may very well stand alone as its own case.
The beauty of this is that PA and US governments must petition for cert within a relatively short period of time. I suspect that the petition will have to be made either before SCOTUS reconvenes or very shortly after. So more than likely, the case would be heard next term. IF SCOTUS grants cert at all. I still think they will in Snyder, and IMO this ruling increases the chance. It would be fantastic if they did not, but I think they will.