I guessed more than once that SCS could do something like this:
Coaches can be a new game sharing the code base, like ATS and ETS2 do already; but also sharing the maps with ETS2. This way the game can be sold independently to people who could be only interested in coaches and it's perceived as a better deal than having to purchase a game (ETS2) in which you could not be interested only to have to pay for another DLC that is the part you are interested into. Those who own ETS2 could have the coaches part as a DLC with the same content that the standalone coaches game would have; keeping a single game, installation thus also keeping everything licensed so far under the ETS2 (in case some licenses were strictly warranted for that specific game only). Any future DLC for coaches could be added to both games (ETS2 or standalone coaches game)
The same logic could be applied for the cruising America game for those people that could like thew ide but had no intention at all to touch trucks.
They had been doing the game completely modular for years; so, with the exception of old ETS2 trucks, everything is already interchangeable and combinable whatever way SCS wants to. And the biggest and more important asset SCS has are the maps; so it has take them time already to start profitting from that in more than a single game as they had done so far.
Regards
