Nun hat das ungeduldige Nachfragen wohl ein Ende, soeben kam diese Mail von JustTrains:
U-Bahn Hamburg U1 - v1.03 Update
Dear Sir/Madam,
As you bought the U-Bahn Hamburg U1 add-on from Just Trains, we're letting you know that new software is now available, providing a new drivable DT4 with eight new scenarios along with other updates.
Please see the supportpage for full details.
If you log in to your Just Trains account and click on 'Your orders', you will be able to download the new software.
Please ensure Train Simulator is not running and uninstall your current U-Bahn Hamburg U1 software before installing the new v1.03 software.
Best wishes,
The Just Trains Crew