Simple question, really. Does anybody know if the maps on the euro coins will be updated on future mintings as the new member nations (Latvia, Estonia, Lithuania, Poland, Hungary, Czech Republic, Slovakia, Slovenia, Cyprus and Malta) join this year?
I can’t answer the question (other than to say that I don’t think so), but I can offer a link to pictures of a fake euro coin. 
I can only offer as speculation: Yes, that ought to be a logical necessity, as the map on the common side shows the EU countries (it does not represent Western Europe, as Norway is out, and not the Eurozone countries, as Great Britain and Sweden are in). A certain degree of change is inevitable anyway as the monarchies of the Eurozone put their monarch on the national side.
That’s not going to have a large effect on the coinage in circulation, though, as the first batch of coins will be with us for a long time. Prior to the Euro introduction I found at least one 1948 coin in almost every pocketful of change that I idly looked through.
That’s interesting. I remember seeing those “Bank Deutsher Lander” 5-pf. pieces when I was there in the late 70s. I’m amazed you were still seing them a few years ago.