If you find other errors, put them in the comments.
I've taken a walk around the newly updated areas and:
Arandar pass shortcuts are removed and Trannwn achievement diary can't be completed.
The hidey hole near Yaktwee is deleted.
Blocking around the new market stalls in the middle of East Ardougne market is misplaced (entire "island" is shifted 1 tile to the west?).
You can walk through the fence directly north of Ivy in East Ardougne (missing blocking).
New bushes in Yanille clip through building walls to the inside.
You can walk into the rocks at the very south-west of the West Ardougne walls.
The World Gate Engram is sunken into the ground east of the Charm Sprite area.