Some context on recent development: I have decided to keep the map as it is now (there are currently no open suggestions I haven't implemented yet). You can keep making suggestions and I will implement them if possible, but at this point coastlines are set in stone except minor changes. That is why I have started working on the underlying maps, e.g. now with the region map. Next, and also last, on the agenda is the city name manager.
As discussed before, I will transition it to one global base map that is used by all languages. Improved mechanisms for different cities sharing the same tile and name changes for cities will also be added. I will also provide mechanisms to make viewing and editing the city name map easier. Lastly, I want to provide unicode support (or rather, full Windows-1252 support with Python unicode) so you can write out special characters as u"Königsberg" etc. instead of escaping the umlaut, as is already possible for great people names.
This will allow us to kickstart the suggestion phase for the city name map, which I expect will take some time, in which I can let my involvement with the map rest and turn to bug fixes and other changes.