I don’t understand the obsession of Liverpool and XC services to everywhere on earth. Capacity is finite on most routes and would have a huge negative effect across most of the network if ever implemented.
Liverpool is hardly short of destinations including important railheads to access those cross country routes (think Stafford). It has direct services to London, Scotland, Newcastle and Birmingham.
Here in little old Bradford we don’t even have an hourly London service which most major cities have as a bare minimum, but we do feed into important railheads to go further afield from the likes of Leeds, Preston, Huddersfield and Manchester. No hardship. You can go nearly everywhere with that combo of connections.
Now, if only we had a direct cross country service from Bradford to Bognor Regis. We could use the Thameslink tunnel to avoid Birmingham.........