R* will not release it on PC day one. They want the double dippersThey havn't even said what platforms it's for yet, Considering they mentioned something about Fivem and what wukong has just done I wouldn't completely put a day 1 pc release out of the picture yet. Thing are a bit different since the last rockstar release.
edit: I moved this here myself to try not derail that thread and save the mods future work.