The US Servers will come down on July 12, 2012, at 7:00 am PDT for a hotfix. The expected downtime is one hour.  Here's the update notes:

POPULATION / ZONE PROGRESSION

Plane of War x4 Raid

• Commander Goreslaughter and Corpsemaul – The Toll of War curse that each commander casts will not have any variance to its timing.  The curse will show preference to non fighters who are within a reasonable distance of the commander who is casting.  If no non fighter targets are available, fighters may still be cursed.

Withered Lands

• Hexapola should now drop more than one item when killed.