Actually, I mis-spoke.
It's probably closer to the emergence of a new Frankish Empire. There's a coalition of Northern European states with France, Switzerland and Austria that are sure to break from the EU.
The British and the Latin states are likely to be left on their own.
you are correct, this would be unlike the Prussian Empire which aimed at "Germanness" -- forcing German culture, language, religion on others (Kulturkampf) and which took its Prussian militaristic culture and first imposed it on the other Germanics (Swabians, Bavarians, etc) and then tried to do so on the Slavs etc.
This would become a renewed Frankish realm including what is now France, Germany, the lowland countries (Netherlands, Belgium, Luxembourg) and Austria and maybe Slovakia and Czechia.
The UK would be left out as would the Iberian peninsula, Italy, the Balkans and Greece and eastern Europe
I'm pushing the idea to my Polish friends of a revival of the Rzeczpospolita -- the Polish-Lithuanian republic that would include Latvia, Lithuan, Poland, Białorus, Slovakia and Western Ukraine and possibly also Romania and Hungary and maybe Bulgaria!