Believe it or not, I think the bigtime advantage for GT4 tracks will most likely be for Europe. I am curious as to how Paris will turn out, then Citta di Aria, a ride through Amalfi would be nice, and of course the Nurburgring Nords will be in. I got nothing against America or Japan, but Europe seems to be better represented in this GT. And I hope as many circuits as possible will be put into the game to fulfill the 50 or 100 tracks to be mentioned. And keep in mind that Autocross (some call it AutoX. I hate that because I don't shorten "cross" by using an "X") tracks will be in the game, not to mention drifting courses. And let's not overlook rally either. This may sound off-topic, but we may have some new favorite tracks upon GT4's release.
All I know is that for a rally, some snow would be nice for a change. Who knows? Maybe we can have small streams to kick up water like in the Argentina Rally. If a sort of Safari Rally is implemented, I think it would be politically correct not to have animals wander around the course. Speaking of Africa, if 6 contintents will be represented, Africa has Kyliami, Pharkisa, and... I want to say "that circuit in Welcom (pronounced "Vel-come"), South Africa, but I fear I may get that wrong. Anyhow, by the way, That Phillip Island view is pretty cool.
If I get any more ideas for scenic race tracks, I'll post in the future.