Both desktop products should support the use of dynamic layers from remote map services. Dynamic symbolization would increase the use of our map services by a factor of 10. We have users throughout the state who would like to use their Esri desktop software to access our services. Due to their uniquie project requirements, our standard symbolization will not suit their needs. The end result of not having this capabiliity is that they make an offline data request which we are obligated to fulfill. This is exactly what we are trying to avoid by creating the services.
This idea has been merged with Allow ArcGIS Desktop and ArcGIS Pro to interact with ArcGIS Server Dynamic Layers.