The presenter and long-time video game fan takes over from Phil Wang as the face of the prestigious show.
Microsoft has said the "next-generation" device would "lead in performance" and play both Xbox and PC games, in a departure from its previous machines.
Microsoft is the first big company out of the gates with Project Helix - a "next-generation" console.
It comes after the free-to-play game was given top billing at The Game Awards in December.
The executive shake-up has sparked online debate about new boss Asha Sharma's gaming credentials.
Next year could be hugely significant for video games - here are the big things to keep an eye on.
Microsoft is taking one of its most popular and recognisable game series to a rival console for the first time.
The BBC’s Tom Gerken puts Xbox's rival to Nintendo and PlayStation handheld consoles, the ROG Xbox Ally, to the test.
The ROG Xbox Ally works with Game Pass out of the box, meaning gamers start off with hundreds of games.
