F59phr Info Please

If I purchase this and I have completed all the jobs on both routes. Would it give me a fresh timetable to play from. Thanks

 

It subs into the existing timetable

 

So seeing as I have completed the timetable for both there would nothing for it to be used in.

 

Apart from the three scenarios, there is nothing new except for the F59 itself, of course.
The loco is still worth it; just because you have completed all your duties does not mean that you will never drive these routes again.

 

You can play services more than once. There are some services on some routes I must have played 20 times or more as well as playing ones I haven’t done.

 

That's how timetables work. Once you've run them, you've done them.
You can do them again of course if you want.
If you want something "similar" there's the F40 which plays similarly on several other routes.
It's a bit older, but it's similar gameplay and systems.