Final Fantasy 14 will be arriving on the PlayStation 4 on April 14th, 2014 according to Sony. A PS4 beta test for the game starts February 22nd and anyone with the console can play.
Pre-ordering the game on PS4 gives you an Early Access weekend during April 11th - 13th and two in-game items (the Mog Cap which increases XP earned, and a Cait Sith Doll Minion).
The Collector's Edition will give you an in-game "Fat Chocobo Mount and a Wind-Up Moogle Minion item, as well as an art book, soundtrack, art card set, themed security token and a movie called "The Waning of the Sixth Sun."