Going off what I have seen, all the towns grow with time. Don’t forget we are talking of a time period of almost 200 years. I think that the time structure will reach to about 2050, which gives scope for futuristic vehicles, possibly with add on material.
There is a video, showing how the towns grow through time and these spawn into large cities with skyscrapers, and much wider roads, like four lane highways.
Like the vehicles at the start of the game, these start off with horse drawn road vehicles and early steam trains. So buildings will become more modern as time goes on., like the vehicles that will develop. How all these buildings develop, in the game, depends on what content has been built into the programme from the outset, but I am sure it’s going to be a great game, from what I have seen so far.
I prefer the early stages really, as it brings back a bit of nostalgia, when the pace of life was not as hectic as it is today, but most of the younger guys amongst you, will probably prefer the more modern era’s, with faster trains and more congested roads etc. But there again, it’s everyone to his own.