Halo: The Master Chief Collection has been released for Xbox One back in 2014 and fans have been requesting a PC version ever since. It seems like 343 Industries and Microsoft might oblige them soon and may even make an announcement at E3.
Development of Halo: The Master Chief Collection for PC has been either the worst kept secret or just an open secret in Microsoft, depending on how you look at it, and now it seems like they are ready to go out with it. The news or rumour if you will is coming from Brad Sams who has recently correctly predicted that Microsoft are working on an Xbox One S console with no disc as well as the purple one that is themed after Fortnite.
According to his sources, Halo: The Master Chief Collection is coming close to release on PC but it remains unknown when they might release or even announce it. Sams speculates that the announcement could possibly happen at E3 2019 while the release could happen along with it, at the same time.
Halo: The Master Chief Collection includes Halo: Combat Evolved Anniversary, Halo 2: Anniversary, Halo 3 and Halo 4. The first two received a graphics upgrade in order not to feel too aged on Xbox One, but keep in mind that all four games were released in the collection back in 2014.
They might still feel aged for PC players who haven't been following the series before and don't have the nostalgia to kick up the hype. Then again, the remasters don't look half bad, but you can judge for yourself on the trailer below which shows snippets of gameplay from each entry.
None of this info was officially confirmed by Microsoft or 343 Industries but Sams' early info on the Fortnite-themed Xbox as well as the disc-less one are getting more merit by the hour, which hints he is likely correct on Halo: The Master Chief Collection info as well.
On top of that, releasing the four mainline games in a single package will serve well to build up anticipation for Halo Infinite and give context to PC players who haven't experienced the series on Xbox consoles.