It's just "not official yet".
Sonic wasn't the only video game veteran in the spotlight yesterday. As you might recall, Square Enix held a special 35th Anniversary Livestream for the Dragon Quest series.
One of the standout announcements was the reveal of Dragon Quest III HD-2D Remake. Masaaki Hayasaka is the producer of this remake (running on Unreal Engine 4) and has previously worked on games such as Octopath Traveler - which this game obviously looks strikingly similar to.
Read the full article on nintendolife.com