The November 2017 issue of Modern Railways has an article
about a proposed new passenger service from the Midland
Main Line to Hounslow, using the Dudden Hill Line.

It is suggested that the service should start with 4thp between
West Hampstead and Hounslow, requiring new platforms at
Cricklewood and West Hampstead. A later development would
be another 4tph from Hendon, also requiring new platforms. Why
not send the second phase to Wembley Stadium which already has
turn-back facilities? The lack of capacity at Hounslow necessitates
major expenditure in Kew. Why not send phase 2 trains either to
Richmond or to new platforms at Acton Main Line Station?

Does anyone know if there is a real demand for this proposed service?