There's internet rumour that they are holding it back to coincide with the potential release of the SONY Virtual Headset (similar to Oculus Rift).
Thanks for alerting me to this; it will give me some homework to do. I think the biggest problem I'm having committing to a PS4 purchase right now is the fact that there isn't a quality racing game on the market for it. After what I read this week about DriveClub, I'm starting to think we'll see Project CARS before DriveClub, sometime this
Fall. The XB1, OTOH, already has what I consider to be a quality racer in Forza 5, albeit with on a game controller steering option for me until Controller Max remedies that deficiency.
At present, people with high ed PC's are struggling to get 25FPS at low graphic settings, so I would expect the game would need some serious tweakage to run on consoles (and PC) at 60FPS in HD quality resolutions.
I'm sure that performance will improve over time. I know Anthony said they were trying to optimize the game for the GDC next week, so we should see some evidence of this in the next beta build. In my experience so far, TGC really starts coming alive at 35fps. I'm having to make lots of compromises to the graphics detail and resolution to achieve that though. I don't know how interested I would be in playing the game long term with the detail level I'm running now. I know this, if HBS can match the detail of the PC version in its "high" graphics setting at 1920 x 1080, in either or both the PS4 and XB1 at 1080p/60fps, The Golf Club will be a real head-turner.