One of the worries of many community members is that the definitive editions will be exclusive to the Windows Store. It looks like this won't be the case.
From the article:
With that in mind, our intent is to make our Xbox Game Studios PC games available in multiple stores, including our own Microsoft Store on Windows, at their launch. We believe you should have choice in where you buy your PC games.
In March, we announced that Halo: The Master Chief Collection will come to PC later this year, launching on Steam in addition to the Microsoft Store on Windows. We will continue to add to the more than 20 Xbox Game Studios titles on Steam, starting with Gears 5 and all Age of Empires I, II & III: Definitive Editions. We know millions of PC gamers trust Steam as a great source to buy PC games and we’ve heard the feedback that PC gamers would like choice. We also know that there are other stores on PC, and we are working to enable more choice in which store you can find our Xbox Game Studios titles in the future.
Read more at https://news.xbox.com/en-us/2019/05/30/ ... ojgX2u2.99