There are rumors that the PC Version of GTA 5 will be released in March 2014. A german game website called Spieletipps , contacted the Amazon support and asked if they have informations about the GTA 5 release. The Amazon support answered that the GTA V pc version would be officially announced on December. The Amazon support also wrote that their knowledge is, that GTA V will be released on March 12 in the USA and March 14 in Germany. Spieletipps also uploaded the screenshot on Facebook. Don´t take this serious. It might be wrong or a fake but it even could be right… we only will know if we hear anything from official sources.
There is also a Reddit user who means that a british Amazon support employee said that the PC version of GTA V will be announced in March 2014. There is no guarantee that the release date is right. That all sounds so unreliable.