Tonight you will be able to access final fantasy 14 heavensward content if you got the pre order. So be sure to finish your main story quest line and level up the appropriate classes if you plan to try out any of the new job classes.

Heavensward

The next expansion for Final Fantasy 14 ARR is called Heavensward and will be released spring of 2015.  Square Enix has set up a page that will contain any upcoming information about the latest expansion here http://na.finalfantasyxiv.com/heavensward/. Below is the teaser trailer for Heavenward that shows a fairly epic battle about to ensue with what looks like white dragons, also it displays some pretty sweet animations of how the Dragoons armor adjust for battle.