This move will further motivate SCS and fans to keep following ETS2. ETS2 is running out of map DLC space to expand, so now they are forced to make gameplay changes, improvements, and they need a new way to bring in money. Maybe we can see a whole new gameplay with buses and a fully reworked truck company system that is more in-depth. Time for customization of depots, etc.
It's added longevity and when it releases, will just further increase the numbers playing ETS2. The numbers could add several thousand more.
Positively, the number off layers playing these games steadily increases even after several years.