Not sure how long you were out the loop for – but here’s some info.
This is the most recent track map for v3:
(arrowed sections are double track, dashed areas are tunnels)
The new FIA (Airport) station is in the works as of right now: here’s the most recent photo:
Additionally, the FRA (Firestone Railroad Administration) has begun operations (led by Motor_Law).
Here’s a list of all prominent pictures on this forum post: V3 Picture Showcase
You can always read through this discussion if you want to stay up-to-date or look into the history of the log.