This might be useful to others. It's helped inform my decision as I tend to just play one route to get really familiar with it. In my case it's East Coastway and as you can see, that will not see any advantage to linking to TSW4. This is not a thread to discuss how you feel about it. I think we're all a bit tired of that now. Please exercise restraint. https://dovetailgames.freshdesk.com/support/solutions/articles/80001072374
TLDR TSW3 routes will support fog, TSW2 and prior routes are untouched, by and large (exceptions apply)
