Sheri randomly checked with the Marriot last night about rooms for next year's D*C and they were available. This was total surprise as they weren't supposed to be available (per our last call to the Marriot) until December. We were determined to be in one of the host hotels, so we've been carefully monitoring the situation. As soon as they were available we grabbed them. Chances are they'll go fast as the Marriot is usually the host hotel where you can actually get sleep (if you want it), as opposed to the others which are usually too busy.
DragonCon is September 4th through the 7th of next year; only 336 days left.