It has been confirmed that they will again offer a free TSW 6 starter pack upgrade for a limited time at launch.
I've also read that any current owners of the now discontinued CalTrain related DLC content (San Jose-San Francisco route, DLC add-ons) will not be able to carry them over and play them in TSW 6. So you must have TSW 5 or older installed in order to play that specific content.
Talk and speculation in the DTG forums is that the expired CalTrain license doesn't allow it to be used in newer versions of the sim. That had DTG simply upgraded the current TSW 5 with the newer features instead of presenting it as a full new number version of the sim, they could have loophole avoided this. Not sure yet of the truth of that. A DTG community manager indicated they were still looking into a way to possibly carry it forward to TSW 6, but it didn't sound very hopeful.
I will likely only get the free TSW 6 starter pack this time around unless they include a USA based route I like. As I've said before.... USA-based content is a low priority for them. The only new USA content on their current roadmap is a "Santa Fe on Cajon Pass Gameplay Pack" from High Iron Simulations. It sounds like at the very least simply a scenario pack with possibly Santa Fe repaints or even SF branded new locomotive models and rolling stock. We shall see. The USA is basically ranked 3rd in content priority by DTG.... so we sadly only get what we can get from them unfortunately.
