No exact timelines have yet been given for tickets and the like, but since the event itself is in just about five months, expect to hear more information about it in the very near future. Also, expect to be camping by your computer when they do go on sale, based on the last time the game held a festival.
Final Fantasy XIV fan festival is coming, bringing with it news about the next FFXIV expansion (we all know it’s coming), live challenges, art books, costume contests, and all sorts of fun stuff. Unfortunately for you dedicated fans, you can’t buy tickets for the event… yet. But the day when you can buy tickets is swiftly approaching, based upon the fact that the teaser site for the festival has gone live today.
Source: Official Site