It'll almost certainly get a PC release. The last one didn't because it was a huge mess using a custom kludge of two GTA engines that they barely got working on 360 (remember how ty the PS3 version was?). So a PC port would have been super expensive. Now with XB1/PS4 so close to being PCs it's hard to see them not able to get a PC port out. Rockstar makes huge money off GTA Online on PC so no way they're going to pass up the chance to print more money with RDR2 online.