I thought I was going crazy when I saw Trademond's layout changed until I read the changelog. Did people got lost a lot or something?
A combination of a couple factors.
Firstly, yeah, I got a couple of reports from people who got lost/confused. The simplifications introduced in the new layout should alleviate this.
The main reason, however, is that the old layout is the one from the very beginning of the game and since then I have downscoped a couple of things here and there. The new layout is also a bit smaller and should help in avoiding to end up with an empty city. Finally, I myself got annoyed from some of the paths during playtesting and wanted some more short-cuts and shorter paths, haha.