Dear Amonra, you precisely know the secrets behind the region of Quel'Thalas and the areas that do not appear in WoW, as the Amani peninsula you did to the east, and you know better than anyone that many things do not match (although only Blizzard knows what will happen with those areas).
Assuming that the passage of Greenwood is only one road (possibly the boundary between two territories) and that it makes reference to a territory called Greenwood which his whereabouts are unknown, look
this picture, where you can see that the Ghostlands are among the Greenwood pass to the west and the
Greenrush river to the east, the area located to the west of the aforementioned passage is our area, ie
Northern Lordaeron, which we may call Greenwood (Forestaverde en español), since its location coincides with the passage of Greenwood. At my view of course.