The servers will be brought down on Thursday September 24th, 2015 for the release of Update 28: The Devil’s Gambit. The Lamannia release notes can be read here (they tend to be similar to what goes live, once it goes live the official release notes can be found here.)
The above Youtube video is of a few of the DDO developers previewing some of the new content. The new quests are a continuation of Update 27’s story-line which takes you all around Stormreach trying to stop Arraetrikos from doing bad stuff. They also discuss some of the things scheduled for release in Update 29. Another topic is they discus the enhancement tree pass they’ve given to rangers(finally rangers get some love). There is a lot of information in the video so you should take a look at it yourself! There is a medium spoiler warning.
On a side note, I play on the Argonnessen server and for the past few weeks there has been a pet wolf just hanging out in the Marketplace on the bridge going north from the center to the airship portal there. It looks like some negligent druid left it to fend for itself. He somehow must have taken Uncaring Master even though that is only allowed for Artificers. The kind people of Argonnessen have been caring for it. I know a bunch of people, including myself, hug it when they pass. Someone even gave it 6 hours of loot bonus, probably so it can find better food in the trash bins of Stormreach. I will be slightly sad when the servers are brought back up after the update and he’s gone. I’ll just pretend that he found a new better master.