You're paying for two new routes (Bakerloo Line and Koln-Aachen, including the ICE 3M with our first real high-speed line). This is three new routes (Sand Patch Grade) if you're on console, one remastered route if you're on PC. You're also getting Scenario Planner, which gives you the ability to make your own scenarios, plan out AI journeys and drive your trains (almost) anywhere. You're also getting the Livery Designer which allows you to customize new trains with your own designs. New routes also include significantly better simulated adhesion to provide an additional challenge and realism. If you're on console you're getting 4K support on the "pro" level consoles. Everyone else will get improved environment lighting and better skies. Support for additional control methods is on the way, but you won't get that on day 1. So, 2 or 3 new routes depending on your platform, 2 chunky new features, improved physics and upgraded graphics.