Handle Announcements Better
This one may not be exclusively a Square Enix problem, but they do need to work on this as much, if not more, than any other developer or publisher in 2017. As Final Fantasy XV’s last minute delay taught us, it’s best to actually make sure that you’ll be able to hit those milestones before preemptively announcing a release date.
To use a better example: Kingdom Hearts III and Final Fantasy VII Remake. While we all likely knew that the former was going to come eventually, the lengthy gap between announcement of the game and its future release is a little bit of a sore spot. Since the odds of one or both of them coming in 2017 are still currently slim, despite our many wishes, maybe they should learn to not announce games until they’re fairly close to release.