https://medium.com/@octskyward/ok-what-now-e3f64d38f7#.q4vch...
It is almost without question that the Swiss will hold another referendum in the coming months, as their deadline for implementing the previous referendum's legislation (which they are legally bound to do) will expire in February. However due to the latency on getting new laws through Parliament they really have to start now.
There is no way to renegotiate with the EU because the EU sees any geographically European population that chooses to defy the EU as some kind of terrorist, with whom negotiation is unthinkable. They refused to negotiate with the Swiss and are now demanding the Swiss join the EU proper or else there won't be any further negotiations (ever). The Swiss do not want to join the EU. So the stage is set for a showdown.
The best case outcome for the EU is a new vote in which the Swiss choose to continue the status quo for a little while longer.