I'll try my best to make it to FrOsCon again, but can't promise it right now as I'm pretty busy...
I don't expect to make it this year, though there's a possibility that I might come if there's an affordable flight or train trip from Bremen to Sankt Augustin. Flying from Haugesund to Bremen is nearly free, but from Bremen it's quite a distance to Sant Augustin. I won't travel through europe by car anymore, it's far too expensive to get out of this country with it.
You could try to find someone to carpool. In Germany, mitfahrgelegenheit.de has a lot of offers for cheap travelling, usually around 5€/100km. So you could go from Bremen to Bonn or Köln or something and take the local train from there.