Marey + Map from RT to scheduled

[skinkie]

When moving down from a section with realtime data, towards scheduled data the data presented on the map is gone. Now this could be seen in multiple perspectives. The data actually lacks a prediction in the source data. I would expect that without any prediction the source scheduled data would be used relative toward the existing realtime data, this could create a full prediction even in the Marey diagram. The alternative would be to create a full prediction in the backend, this would cause the Marey diagram to be full as well.