Please see the most recent updates in the "Where did the .com name go?" thread. Posts number 16 and 17.
As far as I know there are no plans for other than one custom livery. The ovals will be available as an upcoming DLC along with a 2015 Indycar DLC. By the looks of things (developer forums) there are some exciting times ahead.

can you guys tell me if thunderhill raceway park in willows ca in is Pcars?...ive seen it listed somewhere.