I don't know, I have no inside info, and no axe to grind. I just want PCars to be released.
The problem for PCars will come from people losing interest. I am not talking about people here on GTplanet, I am talking regular, actual gamers. There has been so much hype over the last 6 months that people have seen it and made their pre-orders. Then cancelled them, and made them again, and cancelled them again.
Next time (or the time after or the time after that) they will forget to pre-order. They will get into "crazy dance moves 57" or "sim pet owner" (with optional in game purchases). What if AC or Iracing was given this much hype? What if GT7 decide to reveal a release date of "late 2015"? (which would probably mean sometime 2025). Good-Will only goes so far.
PC players have a lot to choose from, XBone have Forza series, PS4 players not so much. the problem I see is that one day you have to take a punt and get it out there, warts and all. It cant be as bad as Driveclub, and it will knock the Crew into the long grass.
I just hope SMS can see the benefit of getting the game out there and have several thousand paying testers playing the game from day one.