First of all I would like to mention I like heavy freight trains, but also passenger trains. Both European and US ones. As to European ones, we already have several routes with both passenger and freight, from Germany - lot of them - , some from UK too. Even more coming according with the roadmap. Great! Other special train type are high speed ones: We already have one, and 2 more coming as to roadmap! Great 2! Even other routes types are coming, apart from the subway Bakerloo already launched. But the US heavy freight trains routes, are in the worst situation of the most requested trains and routes type ones! Let me explain why: - Today we have the Sand Patch Grade. This route is really nice! But it was the first one for TSW - so the older one on this sim - despite it was upgraded for TSW2. - Península corridor, it has also UP freight trains. But they are small ones. They are ok for this route. But the locomotives and freight cars are really limited. Just one locomotive model, and 2 freight cars. The main train for this route are the Caltrain ones. I love this route too! But this is not the heavy and bigger trains fans really likes and claim for. - NEC is exactly the same situation as PC mentioned above. But with an extra and negative point. It not be included on TSW2! Furthermore we will miss Amtrak trains! Not included also on the Roadmap. - The situation is getting worrying when you check the Roadmap! Cane Creek seems to be the only heavy freight route. Checking this route - I did not know before, as this is not one of the known heavy freights, or even requested by the related fans - I discovered it is not a route, it is a branch line, of only 36 miles! Heavy freight as they are really big and long, requires longer routes. Good news it will be UP this time. Which I like it and hope the new route be from another company. But there are bad news: the locomotives will be exactly the same of Sand Patch: the AC4400C and SD40-2. This take me to another sad news about US heavy freight trains: - No new locomotives. Just a repaint of the previous ones!. Which as mentioned, are the first locomotives TSW did! The older ones in this simulator. - Furthermore another locomotive is planned on the Roadmap for SPG. ... Unfortunately will be an older heavy freight locomotive version of the GE Dash series! We the heavy freight fans have been requesting modern locomotives, not older ones. Several threads and post have been requesting modern versions of the GE Dash9, the GEVOs ones as ES44AC / DC or the latest Tier 4. This will imply to the developers not a complete new locomotive. Just some modifications to the trucks, windows, radiators, and other details. The locomotive cab is also really similar to the current AC4400CW. This locomotives are used by several train companies so repaints on the Livery Designer were more real world ones! The CW it have specific trucks, only CSX and CN have it No modern EMD / Progress Rail locomotives as SD70 ACE and T4 were be available either soon. So european trains have old and modern trains on TSW. But US freight ones only have old ones. No modern locomotives! Please notice AC4400CW was launched on 1994. More than 20 years ago! As to routes Matt has explained there is no limitation about length. The problem to make longer routes is the details of the routes required for TSW2 starndards. Which it is completely reasonable for me. I fully understand that! So for that reason I suggested some time ago, to make heavy freight routes which does not requires so much details as the ones on semi desert zones of California, Arizona, Texas, Nevada. Very few objects are required to include there, small trees or bushes, small towns, with no big buildings, etc. Then we could have a route of at least around 120 / 140 kms of this kind.. There are several famous heavy freight routes on those States. Furthermore those routes are not grade pass. So we get another kind of! Are fast heavy freight and or routes with several curves, altitude differences, which makes a really challenge for this kind of trains and its engineers. So lot of fun to run it! I already experienced this on Open rails. Even DTG has this kind of routes for Train Simulator! So in resume: Please don't get me wrong! I love TSW and now TSW2. It is the best ever simulator regarding realism and visual quality. As mentioned I also like very much other kind of trains and of other countries, including of current routes, preserved collection, and several of the new ones in the roadmap. But for the fans of north american modern heavy freight trains, - which there are lot of them here - frankly speaking, the roadmap details are not good news for us. Hope on new updates of the roadmap, will be this kind of routes available!