Well, I honestly did not see that coming. Square Enix has announced that they will be having a second Double-EXP Campaign; presumably to commemorate the release of Final Fantasy XI‘s newest expansion: Seekers of Adoulin (released last Tuesday). Players who embark on the campaign will receive the bonus in every map of the game except for Abyssea (the area in which the fastest and largest amounts of EXP/hr can be obtained).
The campaign will begin at 11:00am on Thursday April 4th, 2013 and will conclude on Sunday, April 7th, 2013 at 10:59am. Square Enix has also revealed the following:
* The Dedication effect gained from experience bonus equipment will also be doubled.
* Experience points earned by clearing content or using items will not be doubled.
* Adventuring Fellows cannot be called in the new areas added with Seekers of Adoulin.