Final Fantasy XIV: A Realm Reborn producer and director Naoki Yoshida revealed that:

We consider it one of our missions to reacquaint gamers all over the world with the wonders of Final Fantasy. To this end, we’ll be incorporating the most memorable elements of the series into A Realm Reborn. Mind you, this won’t be limited only to the game’s launch; in subsequent patches, we plan to keep adding more great stuff from Final Fantasy’s 25-year history. For starters, adventurers will be able to take on the Crystal Tower (FFIII) raid dungeon, do battle with classic summons (such as Ifrit, Titan, and Leviathan), and ride magitek armor (FFVI). It goes without saying that there’ll be moogles and chocobos as well. Your trusty steed will fight beside you in battle, and can also be dressed up in neat costumes. Future patches will introduce series mainstay Gilgamesh, and also the fun and excitement of the Gold Saucer (FFVII). The list goes on and on!

PS3 players will be able to jump in to start testing when the third phase of the Beta launches. If you haven’t already signed up to become a tester, you can do so at the Beta Tester Application Site.