This is also the way I would do it.
Let the old dispatcher in the game for all "heritage" scenarios and create a (completely) new one for the future.
Maybe one could introduce a labeling system for scenarios which is also displayed in the game menus: Old scenarios are labeled "heritage scenario", the new ones not or "advanced scenario".
Something like this.
I think that now, as the graphic detail and these things get much, much better, RS.com should really think about a (maybe complete?) rewrite of the AI/ Dipatcher (but with leaving the old one in the game for the obvious reasons).
Such a complete rewrite is in my opinion really necessary:
- It's a hard struggle or even imposssible to create working single-track scenarios with two-way traffic.
This is important for the US side, because many of the long-distance routes are single-track most of the time. UK routes are mostly double- or multi-track.
- You have to test a scenario over and over again various times to ensure that it is workin properly. For many people that is daunting and there cold be much more scenarios if it wasn't so difficult to create a scenario.
- Also the scenario editor lacks some functionalties that would really enhance the driving experience.
Let's say, more trigger options, for example a car on a crossing. The driver would have to go into emergency. I don't want to say that we need blood and crashes, the car could drive off the crossing in time before it comes to a crash, but it would make scenarios more interesting if there are unforseeable events and more interaction with the environment.
- What could also be improved (and already is with the new RW3) are the weather effects.
It would be awesome to have thunderstorms and different intensities of rain in the game that dynamically change within a scenario.
This would mean a change in the weather system: The scneario author doesn't choose a weather for the scneario, but maybe a general forecast also depending on the season and month the scenario is set in.
Maybe this all in another update.