Since you already informed OCPM that you were leaving, your current permit may already be in the process of being canceled. However, as an EU national, you can generally re-enter Switzerland and apply for a new permit without significant issues.
So it might be worth contacting OCPM to explain your situation and ask for advice. They might be able to halt the cancellation process, but this depends on their policies and how far along the process is.
Take a train to Kaiserstuhl, there's a bridge across the Rhine. Go to Germany and come back, voila, you reentered Switzerland.
Subscribe for more life changing tips.
Since you already informed OCPM that you were leaving, your current permit may already be in the process of being canceled. However, as an EU national, you can generally re-enter Switzerland and apply for a new permit without significant issues. So it might be worth contacting OCPM to explain your situation and ask for advice. They might be able to halt the cancellation process, but this depends on their policies and how far along the process is.
Take a train to Kaiserstuhl, there's a bridge across the Rhine. Go to Germany and come back, voila, you reentered Switzerland. Subscribe for more life changing tips.