Meanwhile, Joe Neate and Jim Horth will replace Duncan as the heads of Rare, with the latter moving up to take charge of Xbox Game Studios.
Microsoft's streak of layoffs is reportedly set to continue, following nearly 2,000 in January and studio closures this past May.
Launching on Steam, the Microsoft Store and PC Game Pass, the grand strategy title involves leading your nation to prosperity.
"In the end, I've said over and over, I have to run a sustainable business inside the company," says the Microsoft Gaming CEO.
The latest trailer highlights different career activities, from the VIP Charter Service and Aerial Firefighting to Search and Rescue.
Ahead of the June 9th showcase, Giant Bomb's Jeff Grubb reports, "At least a handful of those are games we haven't heard of before."
"Special episodes" of the Official Xbox Podcast will offer updates and deep dives starting June 10th till the end of the week.
Microsoft's Sarah Bond says "core users love Game Pass", and players will see more "really big games" on the service later this year.
Games ranging from Hi-Fi Rush to Ghostwire: Tokyo, and even the older The Evil Within are being bombed with positive reviews.
Recent closures are due to a "widespread cost-cutting initiative that still isn’t finished," reports Bloomberg's Jason Schreier.
Microsoft is under fire after closing four studios, including Tango Gameworks and Arkane Austin, not to mention lagging Xbox sales.
Roundhouse Studios and Alpha Dog Studios are also being closed down due to a “reprioritization of titles and resources.”
The [REDACTED] Showcase will take place afterwards and offer a deep dive into the "next installment of a beloved franchise."
Following the success of Amazon's TV show, Microsoft is reportedly looking to fast-track development on the next Fallout.
After the recent GDC 2024, GamesIndustry's Christopher Dring believes Xbox is "in real trouble as a hardware manufacturer."
Grounded and Pentiment's Switch announcements have been followed up versions, while Sea of Thieves has also been announced for PS5.
However, Microsoft's Phil Spencer doesn't want to create a "false expectation" that its initial titles are "the first four to get over the dam."
Microsoft Gaming CEO Phil Spencer confirmed the titles are "over a year old," with two being "community-driven" and the others smaller.
Two of Microsoft's biggest exclusives will continue to be playable only on Xbox Series X/S and PC, in addition to Game Pass.
Microsoft Gaming CEO Phil Spencer, president Sarah Bond and Xbox Game Studios head Matt Booty will be present for a special edition.
