I'd just like to know how many more routes from existing countries we would need to get in order for people voting for these to decide maybe it's time for more variety. It was frustrating to see in the Rivet survey that most people said routes next to their location were a priority for them to have in the sim. With that attitude we'll never get to some of the most fascinating railway countries like Japan and China, and that would surely be detrimental to TSW2.
Asia because there are other rail systems to be used in train Sim world one of those can be Manila MRT Network. For the United States and Canada why not do NJ Transit Raritan Valley Line and Port the North Jersey coast line Bay Head to New York Penn from train Sim 21. For Canada why not GO Transit Amtrak Niagara Falls New York State to Toronto Ontario via Hamilton, ON and Niagara Falls,ON the Maple leaf route.
The Netherlands for sure. Something Swiss, Austrian, Italian, French and/or Scandinavian would be fun too. The idea of cross border routes (of which I suggested 2), also seems fun, because of rolling stock variety and gameplay (due to the power changeover). There are also a lot of other, German, routes I'd like to see (linked in my signature, mainly Köln-Wuppertal), but they have less priority for me.