All U.S. servers will come down at 7am PDT on Tuesday, May 15, 2012. The expected downtime is one hour. The EU servers will be coming down at 5am London Time on Wednesday, May 16, 2012. The expected downtime is two hours. There is also an SOE maintenance scheduled for 6am PDT on Tuesday, May 15, 2012. Login servers, forums and more will be affected for around 90 minutes.
The full patch notes are available after the jump.

Sony Online entertainment will perform maintenance beginning at 6:00 AM Pacific on May 15, 2012. Maintenance is expected to take approximately 90 minutes. This will impact the following services:
Here's our handy Time Zone Conversion Tool to help you plan!
Source: Station Community Forums
SOE pre-paid cards are now available at EB Games® Canada!
Celebrate Victoria’s Day by buying the SOE $15 Pre-Paid Card now available at most EB Games Canada stores and get BONUS 500 Station Cash® when you redeem your card in-game or here this Saturday 5/19 - Monday 5/21!
The US Servers will come down on May 10, 2012, at 7:00 am Pacific for a hotfix. The expected downtime is one hour. Here's our handy Time Zone Conversion Tool to help you plan! You'll find the patch notes below.
The US Servers will come down on May 8, 2012, at 7:00 am Pacific for a hotfix. The expected downtime is one hour. Here's the patch notes:
POPULATION / ZONE PROGRESSION
Skyshrine x4 raid zones, challenge mode
Skyshrine: the Underdepths
ITEMS
QUESTS
Withered Lands
Holly Longdale, in a post at the EQII website today, goes into detail about new stuff planned for the month. And, in case you're paying attention, almost all of it has to do with the Dungeon Maker feature, detailing future plans. It's not quite ready yet, but it's getting there.
All U.S. servers will come down at 7am PDT on Thursday, May 3, 2012. The expected downtime is one hour. The Test and Test Copy servers will be brought down at the same time for maintenance. Their expected downtime is 12 hours.
The full patch notes are available after the jump.