Is this expansion language free?
As far as I recall, the basic game and German Railroads are not language dependent.
I am going to Essen and want to purchase this expansion.
Presumably the English rules will appear on BGG at some time in the future.
It doesn't look as though Z-Man will be releasing an English version.
Aside from the Rules all Russian Railroads releases so far have been language independent. American Railroads is supposed to show up in the BGG store shortly after Essen.