Did you miss this? It seems there is a consultation running on whether there should be a new Overground station as part of the redevelopment of Old Oak Common.
“A number of proposals are being developed in the Old Oak Common area which impact on local transport needs and strengthen the case for a new Overground Station in the area” – says the website, and basically they are asking local people whether they would like an new Overground station on this stretch of track or not.
You can read the full proposals and consultation on this website.