According to a leaked GTA V PC Release Date, its is coming to PC in 62 Days. The news comes from sites which had previously listed GTA V PC but now have also listed tentative release dates for the same.
Now we have two sources right now. The first source is Gameseek (UK), which lists the date to be the 22nd of November 2013. The second source is Zavvi which lists the game to release on 6th December. Both dates are pretty close which makes us think that they are both legit and the difference is only due to region. Either way it seems that GTA V for PC is indeed coming very soon.