Already has a discount on the PC download version
As of this morning, the revamped version of Final Fantasy XIV is scheduled to release on August 27, 2013. And while it's already starting with a lower MSRP than the original FF XIV, there's also a 20% coupon at Green Man Gaming that will knock an extra $6 off the $30 PC download usual price. Final Fantasy XIV: A Realm Reborn PC Download for $24 after coupon
With a preorder, you'll also be able to access game servers ahead of the official launch date, get a Moogle-themed hat, and even have Cait Sith join your party as a pet.
The coupon also works on the Digital Collector's Edition, which includes all sorts of additional in-game and physical bonus items.