We know the modeling for most if not all these tracks already exist from previous versions. I imagine it's quite a task to bring them up to GT5 standards, but I think this suggests there are plans to expand the track listings in the future. GT6 strikes me as the likely candidate, although the might offer a new track or two for 'mo5 to keep it fresh.
I believe Midfield was marked as a major oversight in 5, and Infineon has always been a favorite of mine along with the Motegi Ring. Didn't Las Vegas serve as a drag strip? Charlie would love that.
I don't understand why Belgium has been snubbed. Maybe Kaz has never been there.
For me personally I would love to see Midfield, El Capitan, Seattle, Apricot Hill, Infineon and Motegi. Then some of the rest of the city courses. I know a lot of you guys get into the rally stuff and even I would like an updated Tahiti Maze.
I would agree Ucan that GT6 would seem most likely for most of these, but at least one is already out there, El Capitan.
Also if for 6, then why upload them (just the logos) this past Jan. and March of this year to the Remote Racing section of the official GT5 “My Home” website. That seems an odd thing to do if these tracks won't be out till GT6.
Yup, pure speculation... but seriously not much else to do, so why not?