I’m genuinely curious about this. The route that I’m developing lost 3 stations and gained 1 station after 2016, but I’d like to have two timetables from the “”era” a.k.a 2000-2016 that still has all three original stations, and a 2016-present era timetable that has the new station and not the old 3. will this be possible?
I'd assume this would function similarly to the Isle of Wight and the Island Line routes as both are the same route but with aesthetic changes and updates as the new D-Stock trains were run on the route afterward along with changes to the schedule.
If the track layout doesn't change you could have the station blueprint check for the current date and if it's in bigger less than x delete itself, buuuut like I said the track layout needs to stay the same and this also wouldn't work correctly with light baking. Making seperate routes is the more realistic option here