Yes, but it contains some old textures, and since the extended bit has some same materials, so it can make, for example, kerbs to look bad all over the track. Fixing UV's and reasigning new textures to extended track wouldn't be much work. But I would like to go futher, Most of it would be foliage all around which also would not be brutal to do for a start (but plenty of tweaking). But I want to have better edges, some buildings, extra details here and there, some distant background stuff at a place, people, marshals, some fences, walls.
We'll see. Would be overkill ATM. But it is definitelly an awesome layout.. or a separate track.