FINAL FANTASY XIV: A Realm Reborn features Full Active Time Events (FATE), which occur periodically in real time throughout Eorzea. In one of these FATE, you and other brave adventurers will have the opportunity to fight alongside Lightning herself.
The reward for successfully completing this event is gear and weaponry modeled after those found in LR: FFXIII. By wearing the full set, female characters can dress as Lightning and male characters can dress as Snow.
A new page has been created on the official site to list all collaborations, click here for the link!