I assume this is going ahead with a two month blockade from Jan to March as planned pre-covid?
If so here is my proposed timetable...
Off Peak
1x Kings Cross to Edinburgh Fast runs as usual - 9 car 800)
1x Leeds to Edinburgh semi fast - 9 car 800)
1x Kings Cross to Leeds calling at , Peterborough, Doncaster, Wakefield and Leeds - 10 car 800)
1x Peterborough to Leeds (2 hourly Harrogate extension) calling at Grantham, Doncaster then Wakefield and Leeds - 5 car 800)
1x Kings Cross to York calling at all LNER stations -9 car 800)
1x Brighton to Kings Lynn (Haywards Heath, Three Bridges, Gatwick, East Croydon, London Bridge, TL Core, Finsbury Park, Cambridge, Cambridge North, Ely, all stops to Kings Lynn - 12 car 387)
1x Brighton to Ely (as above to Finsbury Park then Stevenage, Hitchin, Letchworth, Royston, Cambridge, Cambridge North, Waterbeach and Ely -8 car 387)
2x Horsham to Peterborough (usual to Finsbury Park then Stevenage, Hitchin, St Neots, Huntingdon and Peterborough - 12 car 700)
1x Welwyn GC to Cambridge (Welwyn North, Knebworth, Stevenage, Hitchin, Letchworth, all stops to Cambridge - 8 car 700)
1x Finsbury Park to Cambridge (Potters Bar, Hatfield, Welwyn GC, Stevenage, Hitchin, all stops to Cambridge - 8 car 700)
2x Welwyn GC to Peterborough (all stations - 8 car 700)
HT operate from St Pancras
GC operate from Peterborough or Doncaster or York
Moorgate services operate as usual
Peak services
Kings Cross to Welwyn semi fast run as usual but as 8 car 365 (service will never run down the TL core)
Kings Cross to Baldock/Royston semi fast also run as usual
Kings Cross to Peterborough fast services do not run as there is already 4 hourly services to Peterborough
2 extra LNER services to run from Kings Cross to Leeds/Bradford FS/Hull/Skipton/Newcastle
If so here is my proposed timetable...
Off Peak
1x Kings Cross to Edinburgh Fast runs as usual - 9 car 800)
1x Leeds to Edinburgh semi fast - 9 car 800)
1x Kings Cross to Leeds calling at , Peterborough, Doncaster, Wakefield and Leeds - 10 car 800)
1x Peterborough to Leeds (2 hourly Harrogate extension) calling at Grantham, Doncaster then Wakefield and Leeds - 5 car 800)
1x Kings Cross to York calling at all LNER stations -9 car 800)
1x Brighton to Kings Lynn (Haywards Heath, Three Bridges, Gatwick, East Croydon, London Bridge, TL Core, Finsbury Park, Cambridge, Cambridge North, Ely, all stops to Kings Lynn - 12 car 387)
1x Brighton to Ely (as above to Finsbury Park then Stevenage, Hitchin, Letchworth, Royston, Cambridge, Cambridge North, Waterbeach and Ely -8 car 387)
2x Horsham to Peterborough (usual to Finsbury Park then Stevenage, Hitchin, St Neots, Huntingdon and Peterborough - 12 car 700)
1x Welwyn GC to Cambridge (Welwyn North, Knebworth, Stevenage, Hitchin, Letchworth, all stops to Cambridge - 8 car 700)
1x Finsbury Park to Cambridge (Potters Bar, Hatfield, Welwyn GC, Stevenage, Hitchin, all stops to Cambridge - 8 car 700)
2x Welwyn GC to Peterborough (all stations - 8 car 700)
HT operate from St Pancras
GC operate from Peterborough or Doncaster or York
Moorgate services operate as usual
Peak services
Kings Cross to Welwyn semi fast run as usual but as 8 car 365 (service will never run down the TL core)
Kings Cross to Baldock/Royston semi fast also run as usual
Kings Cross to Peterborough fast services do not run as there is already 4 hourly services to Peterborough
2 extra LNER services to run from Kings Cross to Leeds/Bradford FS/Hull/Skipton/Newcastle