It would be cool if simple PIS and/or destination display functionality could be added to Free Roam instead of defaulting and forcing "Do not board" or nothing at all. By that I mean just simply displaying the destination platform if the destination is a platform, and/or simply displaying the general destination - without the stops inbetween, of course. Even just displaying the destination and nothing more would add a lot more depth in Free Roam when using passenger trains. It would be nice, at least IMO.
It would be nice but probably a little complicated, nonetheless it would add more immersion... Maybe when Formation maker comes out, it'll let you set the Destination PIS too?