Although the first Red Dead Redemption game was never released for the PC, PC fans were hoping that they would get the second game but so far, there has not been any indication that the game would be released on the PC.
To be fair, Rockstar has been very secretive about the sequel. There have not revealed much about the game although they did confirm that a sequel was being developed. The good news is that we might learn more about the game this week.
Rockstar posted an image on twitter suggesting that they will have something to announce on the 28th of September this week. The background of the image suggests that the announcement will be related to Red Dead Redemption but that is all we got from it.
Some fans are hoping that Rockstar would announce the platform that the game will be released on while others are hoping for a release date or maybe a new trailer.