In an Interview with an austrian newspaper called "DerStandart", Kazunori Yamauchi (Creator of the Gran Turismo Series) stated that Gran Turismo could come to the PC in the future. That step would help to spread the Gran Turismo Series to the chinese market.
When asked if the Gran Turismo Series would make an appearance on another console, Yamauchi responded that such a thing wount happen. He also stated, that he would like to produce a Formula One game and that future racing games produced by Polyphony could include Motorcycle Racing, since the company has some expertise in that area comming form the PlayStation2 game "Tourist Trophy".
The last question asked was, if he could imagine Polyphony making other games then racing simulations. His answer was, that there is a possibility for that. He would like to make a RPG with the quality of a Gran Turismo game, but such a thing couldnt be accomplished at the moment, because all of the 120 employees at Polyphony are bussy with Gran Turismo.

[source= http://derstandard.at/?url=/?id=3293567]


They better finish the long overdue Gran Turismo Mobile! However a Gran Turismo on the PC would look awesome. Throw in some online modes and you are all set. Such a game could steal momentum from PS3 sales. Thats why i think it will be released when an 16 core processor is standart in the industry. The interesting thing is, that Yamauchi is fantasizing about leaving exclusivity in favor for the PC.