Speaking in a new interview (via HazzadorGamin), Square Enix legend Naoki Yoshida (often known affectionately by fans as Yoshi-P), confirmed that Final Fantasy 16 is slated for Xbox, although stopped short of offering a timeframe.
Final Fantasy 16 took the franchise into more of an action hack n' slash direction, riffing on games like Devil May Cry. While some fans lamented the lack of tactical combat prevalent in previous games, the game's spectacular combat visuals won over many new and returning fans regardless. However, the game was up until recently, fully exclusive to PlayStation 5. Final Fantasy 16 has since launched on Steam for PC, however, and managed to hit 27,000~ concurrent players at peak. Although you'd have to wonder how much more it might've done if it had launched simultaneously with its PlayStation version, taking advantage of the marketing cycle from its initial launch.
"Of course we did announce the PC version of the game, so looking towards the Xbox version, we do want to release it on Xbox," Yoshida said. "But when it comes to the specifics such as when the game would be available and such, we are not in a position to be able to share anything. But of course, I want to say that it’s not as if there’s zero hope, and we very much do want to achieve that. So players should not give up in terms of their hopes."