In a recent Gamescon interview held just a few days ago. They asked him about it and he said the dev team is ready to make a port and he'd be happy to release if on the Xbox One. But Microsoft is refusing to let their players connect to the same servers everyone else is using. So even if SE released XIV on the Xbox now, you wouldn't be able to play with your friends anyways.

Yoshi-P has made it clear that letting all players no matter what system their on, play together on the same server is a core part of their vision for the game and refuse to compromise that. He said he's made his case to Microsoft and the ball is litterally in their court now. Alas he doesn't expect they'll change their minds on their policy at least for the next year.