If I remember correctly all cars that do not have a build date yet show "30.11.0002" or something similar on etis. When they determine a build date for your car it will show up on etis. Keep checking back it should be soon if it's in the system.
As for dealer ETA to be honest I wouldn't go by what they say. I'd give them and extra week or two, there are many factors in the process that can change.