I would love to have that Route. Not only is it full of cool landmarks, but there are two variants. One variant is the express train, that only stops at bigger cities like Brandenburg, Werder, Potsdam and of course Berlin. But there's also a less faster variant, that also stops at villages like Götz, Groß Kreutz and so on. That would be really awesome to have in-game. I really hope the developers see that post and maybe make my wish reality.