During the Final Fantasy XIV Fan Festival earlier today in Europe, Square Enix discussed a possible version of the game for Switch. All that was said right now is that it’s under “consideration”.
Previously, in August 2015, Naoki Yoshida, the director and producer mentioned that Square Enix was open to putting Final Fantasy XIV on Switch, and that was when it was still called NX. It seems like things are moving along for it to happen bit it isn’t final yet.