On 17 Nov, 13:44, John B wrote:
I thought that it was fairly settled they'd be 'outer', at least in
the sense of being trains that currently go to KX rather than
Moorgate. AIUI there's no suggestion of cutting Northern City
services.

The Northern City is at capacity in terms of train frequency, or will
be after the next service upgrade. The only way to run more inner
services after that will be if they terminate somewhere else. Given
the six tracks from Finsbury Park to Hertford/Welwyn, there appears to
be capacity to run the services themselves.

U