For me it is quite realistic too!
It would be a very coherent DLC, which could actually be called "paths to Moscow". Why the general sense of this road network leads to the city of Moscow.
It would be very interesting that SCS Software was making this road network, with these basic cities, and these countries to Belarus and another part of Russia, including Moscow. It would be really cool I liked this concept map.
I will allow myself to do just one update to complement:
Note that the eastern part of Moscow is excluded from the concept map, opening up the possibility of another DLC in the future.
Perhaps "paths to the Urals" (including the eastern exits from Moscow).
It is also quite interesting that it leaves the south of Russia free to be another DLC, perhaps "Sarmatia DLC: between the Volga and the Don" (south limit the banks of the Don and Volga Rivers form a good limit Another limit to the north would be Moscow, south exits would be part of the DLC).
And it also leaves Ukraine a little outside, in which the country itself allows itself to be its own DLC, with the title perhaps "Paths to Kiev".
Perhaps another later DLC "routes to the Caucasus" (southern Russia borders to the limits of the River Don and Volga to the north of the Map).
Lastly; Caucasian DLC: Sakartvelos (ex-Georgia), Armenia, Azerbaijan.
