"Guild Wars 2 will be 75% off from 10:00 a.m. Pacific Time on Friday, April 10 until 11:59 p.m. Pacific Time on April 13."
* Offer applies only to Digital Heroic Edition and Digital Deluxe Edition purchased through buy.guildwars2.com from 9:00 a.m. Pacific Time April 10, 2015 through 11:59 p.m. Pacific Time April 13, 2015.
This tidbit was buried at the bottom of the announcement that we'll all get to play the new PVP map next Tues afternoon through Wed morning (yay!): https://www.guildwars2.com/en/news/the-stronghold-pvp-public-beta-is-coming/