The next DLC for consoles will almost certainly be CSX: Heavy Haul. Maybe in two months it will be released and the next DLC ....three months??
Why would you assume that the next DLC is HH for Consoles? The last thing we heard about that was that they havent ruled it out and that it needs further optimizations for consoles. And that was a while back. It may come at some point, but saying its almost certainly the next is a bold statement. Next route, if they follow their current cycle which i think they do, could be a German route. Maybe a Loco DLC in between. But until there´s any official announcement its just pure speculation of course.
