since there isnt (still wonder why?) forum side of suggestions, first - you should add such part of forum. kinda lost part when there isnt place where to put some new ideas and things players would love to see ingame.
then - there should be something additional between repairing trains, collecting bonuses and doing all small things. its just worth to log in few times a day and thats it. buildings are upgrading, trains running, few repairs per day, competitions... well, depends, but between all of that there is loads of time that could be spent by doing something to make more prestige or gain money. anything. cause videos and bonus videos dont work 90% of time, even on live servers (doesnt matter chrome or firefox is used, RL videos gives bad text line that its corrupted and period. works only sometimes via mobile app).
devs should look into this, but small chance they will do that. since its they game and players are only guests here