These are talented developers, but the things Paradox management have said and done (in general and in regards to this game) are hardly confidence-inspiring. They’ve already said that there won’t be a part three (at least not with their help), at least heavily implied that they have no confidence in this game’s success and stated that people should tamper their expectations.
There are no more restrictions on Nazi symbols in videogames, except that glorifying Nazism remains illegal regardless of the medium, of course.