I travelled on the soon-to-be Mildmay line today for a round trip, and the situation was:
- the signs at West Hampstead and Gospel Oak were still old, but there signs at Finchley Road & Frognal were replaced with Mildmay line signs. The timetable was still an old one.
- the passenger information system on class 378 was updated. As posted above the calling points are now shown on the board outside the train (I am not sure how useful it is - I think it is better to show the words "Mildmay line" and the destination instead, as all trains always stop at all stations.
- Inside the train, Finchley Road & Frognal is told as an interchange for the "London Underground Metropolitan line", which didn't exist before, while at Gospel Oak, the interchange is now "Suffragette line to Barking Riverside". Also, the valid ticket announcement now includes "bank card" in addition to "valid ticket" and "Oyster card".