Idea's From The Keyboard Of Lucy: Europe Coming Together

It is thought by some people who haven't bothered to read up on it, that the goal of the European Union is to have one big country and i have also thought it sounds like a good idea to me, all 44 countries in Europe today coming together as one big Superpower Nation.
Obviously the name (i quite like Europa), flag (the blue starry one is quite boring) and national Anthem of the new country would have to be sorted out but the more i think about it the more big decisions would have to be made such as what language would we use? Apparently there are over 200 languages spoken across the continent but most seem to speak English as a second language so i would plump for that unless there is a version of Esperanto we could all use.
Then there is the question of Religion, anyone who had been to mainland Europe know they do like a Church and a bit of Bible bashing over there even if most of them are Catholic, they are different flavours of Catholicism especially with the East and West of the Continent so that could prove to be a bit sticky, some people do get very uppity when try to dabble with their religion so we would have to kick that one into the long grass for now.  
Another potential bump in the road could be that some countries just don't like each other for historical reasons, war had broken out for over a thousands years between one European nation and another with 126 since 1900, mostly over religion, land and resources so becoming one would on one hand alleviate them wars as we all share one religion, the land and it's resources but it would be tricky to get some nations to give up regions they have spent centuries keeping out of the hands of others.
Within Europe, economic differences are rife with G7 Nations rubbing along next to some who are dancing around with their legs crossed looking for suitable receptacle so they would benefit immensely from a tens of billions shared European Government pot and i would be fine with using the Euro although it would mean changing all of Britain's keyboards which hasn't seemed to have got around to including the € symbol on then yet.
Mostly the idea that keeps nations apart and warring, putting their own interests first even at the detriment of others, would be removed and that would be the biggest win, everything else could be sorted out later and we have the EU with many nations having the same currency and a European Parliament and Laws, we already have the infrastructure so someone should suggest it.