Thats customer service! Awsome 
I'm happy to say that, the update is done and it will be released together with the next week GSX update.
While we were at it, we made the Icing condition detection much better, BOTH in GSX and Zurich, which will now use the same method.
Previously, Zurich was just using the date of the year, to constantly display its deicers in every weather condition, and regardless if you were actually in the area or not.
After the update, the scenery will check the Precipitation status and Dew Point from the Metar, and will compare it to the outside Temperature, to calculate the relative humidity and the chance for icing and, in that case, will display the deicers, but ONLY if you go to one of the 3 Deicing areas, and set the Parking Brakes. Only then, they'll appear and will start to deice the plane, and this time they WILL deice it for real, like in GSX. As soon as you release the brakes, they'll disappear.
GSX will be also updated with the same Icing detection routine, which is much better than the current "less than 5C°" system.
