Exaclty. "Pretty much confirmed".
You do realise what that means coming from Microsoft do you ?
Unless a title is openly confirmed by MS to be happening, clearly and without any doubt and specifically named for release within a set timeframe, it _didn't happen_.
A few days after Phil Spencer splashed that "Oh H6 is coming to Win10" back in the summer of 2016, there was already doubt as MS changed the "all games will be on Xbox Anywhere" to ".... the games on E3 will get Play Anywhere" just days after Spencers' initial statement, and later MS blogs carefully excelled at _not_ mentioning H6 for PC release.
I fully expect them to scratch a number of "strategic Xbox-sales titles" form the "Anywhere" program.
In fact, it's _bound_ to happen for numberous reasons as they need to have that "golden exclusive list" for Xbox sales, and in that light there's no doubt Halo would be the number one title to get axed when it comes to Anywhere platform.
Also, and let us be honest about this, for the neutral gamer out there and certainly for the PC gamers out there, Halo as a franchise isn't something they're waiting on anymore. That ship has sailed .... like nearly 10 years ago.
CE was groundbreaking, but it was that _manly on consoles_, not so much on PC's. OF course. It came out in 2001 on Xbox. On PC, it came out in 2003. In 2003, high end PC's were seeing launches like Vice City, Warcraft, KOTR and just a couple of months later things like HL2, Doom3, UT, Far Cry ... which made CE look and feel like a fun, but undeniably technically totally dated and limited game.
Microsoft tried to push H2 as a Vista-exclusive-seller (didn't work very well for them). Pretty sure MS has decided the best use for the Halo franchise is pick their battle ground carefully and stick to sure-winner territories.
PC's are not one of those.
As such, Halo 6 -as PC game- is slowly shifting to Half Life 3 territory for me and I'm dead serious when saying the chances of seeing _HL3 next year are bigger than seeing H6 on PC_ in my opinion.
I'll be over the moon if it would happen and I'd be proved to be wrong, but I'm realistic enough to see MS may very well decide not to return Halo to the pc platform as from their point of view, they'd have a lot to loose and very little to gain by such a move.