It's still too early to be thinking this hard on a Saturday morning... But if my partially caffeinated memory serves me correctly, Road America is the only real world track that hasn't made it over from Forza 1. As much as I would love to see Alpine Ring or Blue Mountains make their return to Forza, it makes more sense to go with a real world track.
That said, I suppose that the tremendous Rio de Janeiro Circuit or even the tight little Tokyo Circuit could always make their return. It would be really cool to get a night time track back in the game like the old Tokyo Circuit!
Unfortunately, I am a little concerned that the full New York Circuit might make it's return. I'm not a big fan of 'gas it and brake it' city driving. Since the short track already exists in FM2, I'm sure many of the 3-D models for that track were already done, and could be used for the full NYC track. Che has mentioned that the tracks take upwards of three full months to develop. NYC Long would explain the pleasant surprise of a very inexpensive 100 MS point track arriving along with a DLC car pack.
But I'm still keeping my fingers crossed for a new Road America. And for those of you who didn't have a chance to enjoy the old 4 mile long, 14 turn Road America from Elkhart Lake, WI back in FM1, here's a link to the ribbon:
http://www.forzastudios.com/features/tracks/5/
Everyone enjoy the weekend.
GT:RoxApex
Monster Racing Motorsports #88

______________________
"Imagination is more important than knowledge."
- Albert Einstein