Expansion East Coast Mainline Extension From Doncaster- Peterborough Route To London King’s Cross

Dovetail should extend the ECML from Doncaster and Peterborough to london King’s Cross so we can get ai traffic like the class 700 going towards St Pancras and class 395 entering HS1 tunnel and the overground trains.
The following trains that should come are
1) the class 800/801 on LNER
We already have this on TSW4 but we need a class 800 for this expansion the class 801 will be able to go to Doncaster in the game from King’s Cross and do the drivers change and occasionally there is a peak service from King’s Cross to Doncaster usually at peak times.
2) The class 700
We need the class 700 the Use overhead power aswell mainly not only 3rd rail this would be a great addition to the expansion pack the routes would be london King’s Cross to Cambridge via Alexandra palace and potters bar it’s a stopping service and drivers change should be at letchworth until the full extension comes to Cambridge and the same to Ely (which usually runs on great northern) but some class 700 are operating this route and london King’s Cross to Peterborough full route to Peterborough calling at all stations along the way. Also a Brighton to Cambridge either from London St Pancras international station in the core or Finsbury Park.
3) Class 387 and class 379
We do not have the class 379 but we have the class 387 both should come on great northern and the routes for these two trains should be

King’s Cross to Cambridge calling at all stations along the way drivers change at letchworth
King’s Cross to kings Lynn calling at letchworth before a drivers change
King’s Cross to Ely
King’s Cross to Peterborough which is the full route
A class 379 is possible and could come instead of the class 387/1
4) the class 717
We don’t have this train yet and would run on the slow tracks between Welwyn garden city and Moorgate full route if the extension to Moorgate branch doesn’t come a drivers change at Finsbury Park.
This expansion pack could come cause it is highly requested
And it is possible for Cambridge extension to come

 

Kings Cross to Peterborough would come as its own route rather than an extension to the current one, although would require Great Northern first.

As for Kings Cross to Cambridge this would be another route entirely.